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                              Windows XP services that can be disabled                                                                                June 15, 2005


By Scott Lowe

One of the most effective ways to secure a Windows workstation is to turn off unnecessary services. This reference sheet lists the Windows XP SP 2
services, describes each service's function, specifies whether you can safely disable the service, and outlines the ramifications of disabling the service.
The list assumes the machines is running Windows XP SP2 in a corporate network environment. The list offers one of the following three possibilities for
safely disabling each service:
    • YES = You can disable the service without causing any problems.
    • MAYBE = The computer's role dictates whether you should or should not disable the service--read the special considerations for further
         information.
    • NO = The service is critical to proper Windows operation and should not be disabled.


Service           Description                                   Safely        Ramifications if disabled                Suggested           Special
                                                                Disable?                                               setting             Considerations

                  Notifies selected users and computers of                    Programs that use administrative
Alerter                                                         Yes                                                    Disable
                  administrative alerts                                       alerts will not receive them.

                  Provides support for application-level                      Programs that rely on this service,                          Only enable when using
Application                                                     Maybe                                                  Enable
                  protocol plug-ins and enables                               such as MSN Messenger and                                    the Windows firewall or
Layer
                  network/protocol connectivity                               Windows Messenger will not                                   another firewall. Failure
Gateway
                                                                              function.                                                    to do so can result in a
                                                                                                                                           significant security hole.

                  Processes installation, removal, and                        Users will be unable to install,
Application                                                     Yes                                                    Disable
                  enumeration requests for Active Directory                   remove, or enumerate any
Management
                  IntelliMirror group policy programs                         IntelliMirror programs.

                  Enables the download and installation of                    The operating system cannot                                  Automatic updates help
Automatic                                                       Yes                                                    Enable
                  critical Windows updates                                    automatically install updates, but                           keep your computer
Updates
                                                                              can still be manually updated at the                         current. If you do disable
                                                                              Windows Update Web site.                                     the service, perform
                                                                                                                                           regular, manual updates.

                  Transfers data between clients and                          Features such as Windows Update                              Enable this services if
Background                                                      Yes                                                    Disable
                  servers in the background                                   will not work properly.                                      you enable Automatic
Intelligent
                                                                                                                                           Updates.
Transfer



                                                                            Page 1
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Windows XP services that can be disabled


Service         Description                                   Safely        Ramifications if disabled                Suggested           Special
                                                              Disable?                                               setting             Considerations

                Enables ClipBook Viewer to store                            ClipBook Viewer will not be able to
ClipBook                                                      Yes                                                    Disable
                information and share it with remote                        share information with remote
                computers                                                   computers.

                Allows management of Component                              System Event Notification stops
COM+ Event                                                    No                                                     Enable
                Services by providing automatic                             working, which means that logon
System/Syste
                distribution of events to subscribing COM                   and logoff notifications will not take
m Application
                components                                                  place. Other applications, such as
                                                                            Volume Snapshot service, will not
                                                                            work correctly.

                Maintains an up-to-date list of computers                   Your computer will be unable to                              Enable this service, if you
Computer                                                      Yes                                                    Enable
                on your network, and supplies the list to                   locate other Windows computers on                            need to share files with
Browser
                programs that request it. The Computer                      the network                                                  other Windows
                Browser service is used by Windows-                                                                                      computers.
                based computers that need to view
                network domains and resources.

                Provides three management services:                         The associated management                                    Required if you use the
Cryptographic                                                 No                                                     Enable
                Catalog Database Service, which                             services will not function properly.                         Automatic Updates
services
                confirms the signatures of Windows files;                                                                                Windows service; Also
                Protected Root Service, which adds and                                                                                   used by other Windows
                removes Trusted Root Certification                                                                                       services, such as Task
                Authority certificates from this computer;                                                                               Manager.
                and Key Service, which helps enroll this
                computer for certificates

                Allows the system to automatically obtain                   The system will be unable to obtain                          You can disabled this
DHCP Client                                                   Maybe                                                  Enable
                IP addressing information, WINS server                      an IP address, WINS information,                             service if you do not use
                information, routing information, and so                    and the like, from a DHCP server                             DHCP.
                forth; is required to update records in                     and will need to be configured with
                Dynamic DNS                                                 a static address.




                                                                          Page 2
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Windows XP services that can be disabled


Service         Description                                   Safely        Ramifications if disabled                Suggested           Special
                                                              Disable?                                               setting             Considerations

                Ensures that shortcuts and OLE links                        Link tracking will be unavailable.
Distributed                                                   Yes                                                    Disable
                continue to work after the target file is                   Users on other computers won't be
Link Tracking
                renamed or moved by maintaining links in                    able to track links on this computer.
Client
                the file system

                Coordinates transactions that span                          Distributed transactions will not
Distributed                                                   Yes                                                    Disable
                multiple resource managers, such as                         occur.
Transaction
                databases, message queues, and file
Coordinator
                systems

                Resolves and caches DNS names,                              The system will be unable to                                 Stopping this service will
DNS Client                                                    No                                                     Enable
                allowing the system to communicate with                     resolve a name and will be able to                           result in the inability for
                canonical names rather than strictly by IP                  communicate only via IP address. A                           the computer to resolve
                address                                                     client may be unable to                                      names to IP addresses.
                                                                            communicate with its domain
                                                                            controller.

                Collects, stores, and reports unexpected                    Error Reporting will occur only for
Error                                                         Yes                                                    Disable
                application crashes to Microsoft                            kernel faults and some types of
Reporting
                                                                            user mode faults.

                Allows event log messages to be viewed                      Administrators won't be able to view
Event Log                                                     No                                                     Enable
                in Event log to assist in problem                           logs, including the security log,
                resolution                                                  increasing the difficulty of
                                                                            diagnosing problems and detecting
                                                                            security breaches.

                Enables management for applications                         Fast User Switching will be                                  Doesn't work in domain
Fast User                                                     Yes                                                    Disable
                that require assistance in a multiple user                  unavailable.                                                 environments anyway.
Switching
                environment
Compatibility

                Enables Help and Support Center to run                      The Help and Support Center will
Help and                                                      Yes                                                    Enable
                on this computer                                            be unavailable.
Support




                                                                          Page 3
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Windows XP services that can be disabled


Service            Description                                   Safely        Ramifications if disabled                Suggested           Special
                                                                 Disable?                                               setting             Considerations

                   Enables generic input access to Human                       Hot buttons controlled by this                               Required for some quot;hot
HID Input                                                        Maybe                                                  Disable
                   Interface Devices (HID), which activates                    service will no longer function.                             buttonsquot; on newer
                   and maintains the use of predefined hot                                                                                  keyboards. Can be safely
                   buttons on keyboards, remote controls,                                                                                   enabled if these buttons
                   and other multimedia devices                                                                                             don't work with this
                                                                                                                                            service disabled.

                   Manages CD recording using Image                            This computer will be unable to                              This service can be
IMAPI CD-                                                        Maybe                                                  Enable
                   Mastering Applications Programming                          record CDs.                                                  disabled if you don't have
Burning COM
                   Interface (IMAPI)                                                                                                        a CD-RW drive in your
                                                                                                                                            system.

                   Indexes contents and properties of files                    Files will not be indexed. Indexing                          Uninstall this service if
Indexing                                                         Yes                                                    Disable
                   on local and remote computers; provides                     can speed searching.                                         you don't plan to use it.
Service
                   rapid access to files through flexible
                   querying language

                   Provides network address translation,                       Networking services such as                                  If you share your Internet
Internet                                                         Maybe                                                  Disable
                   addressing, name resolution and/or                          Internet sharing, name resolution,                           connection, you must
Connection -
                   intrusion prevention services for a home                    addressing and/or intrusion                                  enable this service.
Firewall (ICF) /
                   or small office network                                     prevention will be unavailable.
Sharing (ICS)

                   Provides end-to-end security between                        TCP/IP security between clients                              If you connect over an
IPSEC                                                            Maybe                                                  Disable
                   clients and servers on TCP/IP networks                      and servers on the network will be                           IPSec secured
services
                                                                               impaired.                                                    connection, don't disable
                                                                                                                                            this service.

                   Waits for new drives to be added and                        New disks will not be detected by                            Leaving this service
Logical Disk                                                     Yes                                                    Enable
                   passes required information to the LDM                      the system.                                                  enabled makes it easy to
Manager
                   administrative service; required to ensure                                                                               add new drives to the
                   dynamic disk information is up to date                                                                                   system. In a very high
                                                                                                                                            security environment, this
                                                                                                                                            should not be allowed.




                                                                             Page 4
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                         For more downloads and a free TechRepublic membership, please visit http://techrepublic.com.com/2001-6240-0.html
Windows XP services that can be disabled


Service          Description                                   Safely        Ramifications if disabled                Suggested           Special
                                                               Disable?                                               setting             Considerations

                 Starts and allows configuration to take                     None; runs only when needed.                                 Started by the Logical
Logical Disk                                                   Yes                                                    N/A
                 place when a new drive is detected or a                                                                                  Disk Manager service
Manager
                 partition/drive is configured                                                                                            only when needed. Do
Administrative
                                                                                                                                          not disable if you have
                                                                                                                                          the Logical Disk Manager
                                                                                                                                          Service enabled.

                 Manages Visual Studio debugging                             Visual Studio debugging
Machine                                                        Yes                                                    Disable
                                                                             information will not be available.
Debug
Manager

                 Transmits net send and Alerter service                      Alerter messages will not be
Messenger                                                      Yes                                                    Disable
                 messages between clients and servers.                       transmitted.
                 This service is not related to Windows
                 Messenger

                 Manages software-based volume shadow                        Software-based volume shadow                                 Leave set at Manual if
Microsoft                                                      Yes                                                    Disable
                 copies taken by the Volume Shadow                           copies cannot be managed.                                    you intend to use
Software
                 Copy service                                                                                                             Windows Backup.
Shadow Copy
Provider

                 Enables an authorized user to access this                   Remote desktop sharing will be                               If you use NetMeeting,
NetMeeting                                                     Yes                                                    Disable
                 computer remotely by using NetMeeting                       unavailable.                                                 don't disable this service.
Remote
                 over a corporate intranet
Desktop
Sharing

                 Manages the network and dial-up                             Network configuration will not be
Network                                                        No                                                     Enable
                 connections for the server, including                       possible; new connections can't be
Connections
                 network status notification and                             created and services that need
                 configuration                                               network information may fail.

                 Provides network transport and security                     DDE transport and security will be
Network DDE                                                    Yes                                                    Disable
                 for Dynamic Data Exchange (DDE) for                         unavailable.
                 programs running on the same computer
                 or on different computers


                                                                           Page 5
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Windows XP services that can be disabled


Service         Description                                   Safely        Ramifications if disabled                Suggested           Special
                                                              Disable?                                               setting             Considerations

                Manages Dynamic Data Exchange (DDE)                         DDE network shares will be
Network DDE                                                   Yes                                                    Disable
                network shares                                              unavailable.
DSDM

                Collects and stores network configuration                   Services such as ICS & ICF will not                          Enable if this computer
Network                                                       Maybe                                                  Disable
                and location information and notifies                       function.                                                    has Internet Connection
Location
                applications when this information                                                                                       Sharing enabled or if you
Awareness
                changes. This service is a part of ICS                                                                                   are using the Internet
(NLA)
                                                                                                                                         Connection Firewall.

                Allows users to log on to the network                       Users with versions of Windows                               Enable this service if this
NT LM                                                         Maybe                                                  Disable
                using NTLM                                                  prior to Windows 2000 will be                                computer needs to log on
Security
                                                                            unable to log in to the network.                             to pre-Windows 2000
Support
                                                                                                                                         computers or domains
Provider

                Collects performance data for the                           Performance information will no
Performance                                                   Yes                                                    Disable
                computer or other computers and writes it                   longer be logged or displayed.
Logs and
                to a log or displays it on the screen
Alerts

                Allows an administrator to add hardware                     The system will be unstable and
Plug and Play                                                 No                                                     Enable
                to a server and have the server                             incapable of detecting hardware
                automatically detect and configure it                       changes.

                Retrieves the serial number of any                          Protected content might not be
Portable                                                      Yes                                                    Disable
                portable media player connected to this                     downloaded to the device.
Media Serial
                computer
Number

                Manages all local and network print                         Printing on the local machine will be                        Disable this service if you
Print Spooler                                                 Maybe                                                  Enable
                queues and controls all printing jobs                       unavailable.                                                 don't have a printer.

                Protects sensitive information such as                      Protected information will be
Protected                                                     Yes                                                    Enable
                private keys from exposure except to                        inaccessible.
Storage
                allowed persons and services




                                                                          Page 6
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Windows XP services that can be disabled


Service         Description                                   Safely        Ramifications if disabled                Suggested           Special
                                                              Disable?                                               setting             Considerations

                Provides network signaling and local,                       QoS aware applications with either                           Enable this service if you
QoS RSVP                                                      Yes                                                    Disable
                traffic-control, set-up functionality for                   not function, or will not have their                         use QoS aware
                (Quality of Service) QoS-aware programs                     complete functionality.                                      applications.
                and control applets

                Detects unsuccessful attempts to connect                    Users will need to manually
Remote                                                        Yes                                                    Enable
                to a remote network or computer and                         connect to other systems.
Access Auto
                provides alternative methods for
Connection
                connection
Manager

                Manages dial-up and virtual private                         The operating system may not                                 This service is run on
Remote                                                        Maybe                                                  Enable
                network (VPN) connections from this                         function properly.                                           demand by the Remote
Access
                computer to the Internet or other remote                                                                                 Access Manager
Connection
                networks
Manager

                Manages and controls Remote                                 Remote Assistance will be
Remote                                                        Yes                                                    Disable
                Assistance                                                  unavailable.
Desktop Help
Session
Manager

                Allows processes to communicate                             The system will not boot. Don't
Remote                                                        No                                                     Enable
                internally and across the network with                      disable this service.
Procedure
                each other
Call (RPC)

                Provides RPC name services similar to                       Systems that are running third-party
Remote                                                        No                                                     Enable
                DNS services for IP                                         utilities looking for RPC information
Procedure
                                                                            will be unable to find it. OS
Call (RPC)
                                                                            components do not use this
Locator
                                                                            service, but programs such as
                                                                            Exchange do.




                                                                          Page 7
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                      For more downloads and a free TechRepublic membership, please visit http://techrepublic.com.com/2001-6240-0.html
Windows XP services that can be disabled


Service         Description                                   Safely        Ramifications if disabled                Suggested           Special
                                                              Disable?                                               setting             Considerations

                Provides a mechanism to remotely                            Remote systems will be unable to                             Some programs require
Remote                                                        Maybe                                                  Disable
                manage the system registry                                  connect to the local registry.                               this functionality in order
Registry
                                                                            Hfnetchk uses this mechanism.                                to operate.
                                                                            Disabling it can affect the patch
                                                                            utility's operation.

                Manages and catalogs removable media                        Programs that are dependent on
Removable                                                     Yes                                                    Enable
                and operates automated removable                            Removable Storage, such as
Storage
                media devices                                               Backup and Remote Storage, will
                                                                            operate more slowly.

                Enables multiprotocol LAN-to-LAN, LAN-                      Routing and Remote Access                                    Better yet, don't install
Routing and                                                   Yes                                                    Disable
                to-WAN, virtual private network (VPN),                      services will be unavailable.                                this service at all.
Remote
                and network address translation (NAT)
Access
                routing services for clients and servers on
                this network

                Enables starting processes under                            Users will be unable to use the
Secondary                                                     Yes                                                    Disable
                alternate credentials. If this service is                   quot;Run Asquot; feature to elevate
Logon
                stopped, this type of logon access will be                  privileges.
                unavailable

                Stores account information for local                        Services that rely on requests to                            If you use don't use
Security                                                      Yes                                                    Enable
                security accounts, which, when started,                     the SAM database will not function                           DHCP to obtain an IP
Accounts
                allows other services to access the SAM                     properly. Group Policy objects may                           address, this service can
Manager
                                                                            not operate properly.                                        be disabled.

                Allows the sharing of local resources such                  Resources can't be shared, RPC                               This service must be
Server                                                        Yes                                                    Disable
                as files and printers, as well as named                     requests will be denied, and named                           enabled on Windows XP
                pipe communication                                          pipe communication will fail.                                computers that share files
                                                                                                                                         or printers.

                Provides notifications for AutoPlay                         CD-ROMs and other devices will                               Much easier to leave this
Shell                                                         Yes                                                    Enable
                hardware events                                             not automatically function.                                  enabled, and not much of
Hardware
                                                                                                                                         a security risk.
Detection


                                                                          Page 8
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                      For more downloads and a free TechRepublic membership, please visit http://techrepublic.com.com/2001-6240-0.html
Windows XP services that can be disabled


Service         Description                                   Safely        Ramifications if disabled                Suggested           Special
                                                              Disable?                                               setting             Considerations

                Manages access to smart cards read by                       This computer will be unable to                              If you're using a smart
Smart Card                                                    Yes                                                    Disable
                this computer                                               read smart cards.                                            card reader, enable this
                                                                                                                                         service.

                Provides support for earlier smart card                     The computer will be unable to read                          If you're using a smart
Smart Card                                                    Yes                                                    Disable
                readers attached to the computer                            legacy smart cards.                                          card reader, enable this
Helper
                                                                                                                                         service.

                Used to locate UPnP devices on your                         Your computer will be unable to
SSDP                                                          Yes                                                    Disable
                home network. Used in conjunction with                      located uPnP devices on the
Discovery
                Universal Plug and Play Device Host, it                     network.
                detects and configures UPnP devices on
                your home network

                Required to record entries in the event                     Certain notifications will no longer                         Leave enabled for
System Event                                                  Yes                                                    Disable
                logs; notifies COM+ subscribers about                       work. For example, synchronization                           laptops to that power
Notification
                logon and power-related events                              won't work, as it depends on                                 notifications are passed
                                                                            connectivity information and                                 to the user.
                                                                            Network Connect/Disconnect and
                                                                            Logon/Logoff notifications.

                Performs system restore functions,                          Automatic system restoration will                            While this service does
System                                                        Yes                                                    Disable
                including saving periodic checkpoints                       not be possible.                                             use up some system
Restore
                                                                                                                                         resources, it can be
                                                                                                                                         invaluable for stand alone
                                                                                                                                         machines, particularly
                                                                                                                                         when a software install
                                                                                                                                         goes bad.

                Enables a user to configure and schedule                    Tasks will not be run at their
Task                                                          Yes                                                    Disable
                automated tasks on this computer                            scheduled times.
Scheduler




                                                                          Page 9
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Windows XP services that can be disabled


Service          Description                                   Safely        Ramifications if disabled                Suggested           Special
                                                               Disable?                                               setting             Considerations

                 Required for software distribution in a                     NetBIOS over TCP/IP clients                                  For small networks, this
TCP/IP                                                         Yes                                                    Disable
                 Group Policy (may be used to distribute                     including Netlogon and Messenger                             service may be essential
NetBIOS
                 patches) and provides support for                           might stop responding. Disabling                             if you share files with
Helper
                 NetBIOS over TCP/IP and NetBIOS name                        may also affect the ability to share                         others. For larger
                 lookups                                                     resources.                                                   networks with central file
                                                                                                                                          servers, keep disabled on
                                                                                                                                          desktops.

                 Provides Telephony API (TAPI) support                       The function of all dependent                                Only needed for
Telephony                                                      Yes                                                    Disable
                 for clients using programs that control                     programs will be impaired.                                   modem/fax modem use.
                 telephony devices and IP-based voice
                 connections

                 Enables a remote user to log on to this                     Remote user access to programs
Telnet                                                         Yes                                                    Disable
                 computer and run programs; supports                         might be unavailable.
                 various TCP/IP Telnet clients, including
                 UNIX- and Windows-based computers

                 Allows users to connect interactively to a                  May make your computer
Terminal                                                       Yes                                                    Disable
                 remote computer; Remote Desktop, Fast                       unreliable. To prevent remote use
Services
                 User Switching, Remote Assistance, and                      of this computer, clear the check
                 Terminal Server depend on this service.                     boxes in the Remote tab of the
                                                                             System properties control panel
                                                                             item.

                 Provides user experience theme                              Themes cannot be used.
Themes                                                         Yes                                                    Disable
                 management

                 Manages an uninterruptible power supply                     The UPS cannot communicate with
Uninterruptibl                                                 Yes                                                    Disable
                 (UPS) connected to the computer                             the computer.
e Power
Supply

                 Used in conjunction with SSDP Discovery                     Your computer will be unable to
Universal Plug                                                 Yes                                                    Disable
                 Service, it detects and configures UPnP                     located uPnP devices on the
and Play
                 devices on your home network                                network.
Device Host


                                                                          Page 10
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                       For more downloads and a free TechRepublic membership, please visit http://techrepublic.com.com/2001-6240-0.html
Windows XP services that can be disabled


Service          Description                                   Safely        Ramifications if disabled                Suggested           Special
                                                               Disable?                                               setting             Considerations

                 Manages synchronous and asynchronous                        Certain file transfers will not take
Upload                                                         Yes                                                    Disable
                 file transfers between clients and servers.                 place.
Manager
                 Driver data is anonymously uploaded
                 from these transfers and used by
                 Microsoft to help users find needed
                 drivers. The Driver Feedback Server asks
                 the client's permission to upload the
                 computer's hardware profile and then
                 search the Internet for information about
                 how to obtain the appropriate driver or get
                 support.

                 Manages and implements volume                               Shadow copies will be unavailable                            Enable this service if you
Volume                                                         Yes                                                    Disable
                 shadow copies used for backup and other                     for backup and the backup may fail.                          use Windows Backup on
Shadow Copy
                 purposes                                                                                                                 this desktop.

                 Enables Windows-based programs to                           These functions will not be
WebClient                                                      Yes                                                    Disable
                 create, access, and modify Internet-based                   available.
                 files

                 Manages audio devices for Windows-                          Audio devices and effects will not                           Even though it can be
Windows                                                        Yes                                                    Enable
                 based programs                                              function properly.                                           disabled, without this
Audio
                                                                                                                                          service, you will get no
                                                                                                                                          sound.

                 Provides image acquisition services for                     Programs that require images, such                           This service is required
Windows                                                        Yes                                                    Enable
                 scanners and cameras                                        as Windows Movie Maker, won't                                for some scanners and
Image
                                                                             function properly.                                           cameras. If you don't
Acquisition
                                                                                                                                          have a scanner or a
(WIA)
                                                                                                                                          camera, you can disable
                                                                                                                                          this service.

                 Adds, modifies, and removes applications                    People can install no programs, or
Windows                                                        Yes                                                    Enable
                 provided as a Windows Installer (*.msi)                     make use of Add/Remove
Installer
                 package                                                     programs.



                                                                          Page 11
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                       For more downloads and a free TechRepublic membership, please visit http://techrepublic.com.com/2001-6240-0.html
Windows XP services that can be disabled


Service            Description                                    Safely        Ramifications if disabled                Suggested           Special
                                                                  Disable?                                               setting             Considerations

                   Provides system management                                   System management and
Windows                                                           No                                                     Enable
                   information; required to implement                           performance information will be
Management
                   performance alerts using Performance                         unavailable.
Instrumentatio
                   Logs and Alerts
n (WMI)

                   Monitors all drivers and event trace                         (extension of WMI only)
WMI Driver                                                        Yes                                                    Enable
                   providers that are configured to publish
Extensions
                   Windows Management Instrumentation
                   (WMI) or event trace information

                   Uses NTP to keep computers in the                            Time synchronization won't take
Windows                                                           Yes                                                    Enable
                   domain synchronized                                          place.
Time

                   Automatically configured WiFi (802.11)                       You will have to manually configure                          Enable this service if
Wireless Zero                                                     Maybe                                                  Disable
                   network adapters                                             wireless networking.                                         you're using wireless
Configuration
                                                                                                                                             networking.

                   Provides performance library information                     This service runs only when
WMI                                                               Yes                                                    Enable
                   from Windows Management                                      Performance Data Helper is
Performance
                   Instrumentation (WMI) providers to clients                   activated.
Adapter
                   on the network

                   Provides network connections and                             The computer will be unable to
Workstation                                                       Yes                                                    Enable
                   communications using the Microsoft                           connect to remote Microsoft
                   Network services                                             Network resources.




                 Scott Lowe has held a variety of jobs in the information technology field. Although he has been involved primarily in IT management and
                 network/systems engineering, he has also served as a DBA, help desk technician, and several other job roles. He is currently the IT
                 Director for Elmira College, a small private college located in Elmira, NY.




                                                                             Page 12
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Cheat sheet: Windows XP services that can be disabled




Additional resources
    •     Sign up for our TechRepublic Downloads Weekly Update, delivered on Tuesdays.
    •     Sign up for the Windows XP newsletter, delivered on Thursdays
    •     Sign up for the Windows 2000 Professional, delivered on Tuesdays
    •     Sign up for our TechRepublic NetNote, delivered on Mondays, Wednesdays, and Thursdays.
    •     Check out all of TechRepublic's newsletter offerings.
    •     Cheat sheet: Windows 2000 services that can be disabled
    •     Worksheet: Windows Server 2003 default services


Version history
Version: 1.0
Published: June 15, 2005




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Windows Xp Services That Can Be Disabled

  • 1. Version 1.0 Windows XP services that can be disabled June 15, 2005 By Scott Lowe One of the most effective ways to secure a Windows workstation is to turn off unnecessary services. This reference sheet lists the Windows XP SP 2 services, describes each service's function, specifies whether you can safely disable the service, and outlines the ramifications of disabling the service. The list assumes the machines is running Windows XP SP2 in a corporate network environment. The list offers one of the following three possibilities for safely disabling each service: • YES = You can disable the service without causing any problems. • MAYBE = The computer's role dictates whether you should or should not disable the service--read the special considerations for further information. • NO = The service is critical to proper Windows operation and should not be disabled. Service Description Safely Ramifications if disabled Suggested Special Disable? setting Considerations Notifies selected users and computers of Programs that use administrative Alerter Yes Disable administrative alerts alerts will not receive them. Provides support for application-level Programs that rely on this service, Only enable when using Application Maybe Enable protocol plug-ins and enables such as MSN Messenger and the Windows firewall or Layer network/protocol connectivity Windows Messenger will not another firewall. Failure Gateway function. to do so can result in a significant security hole. Processes installation, removal, and Users will be unable to install, Application Yes Disable enumeration requests for Active Directory remove, or enumerate any Management IntelliMirror group policy programs IntelliMirror programs. Enables the download and installation of The operating system cannot Automatic updates help Automatic Yes Enable critical Windows updates automatically install updates, but keep your computer Updates can still be manually updated at the current. If you do disable Windows Update Web site. the service, perform regular, manual updates. Transfers data between clients and Features such as Windows Update Enable this services if Background Yes Disable servers in the background will not work properly. you enable Automatic Intelligent Updates. Transfer Page 1 Copyright ©2005 CNET Networks, Inc. All rights reserved. For more downloads and a free TechRepublic membership, please visit http://techrepublic.com.com/2001-6240-0.html
  • 2. Windows XP services that can be disabled Service Description Safely Ramifications if disabled Suggested Special Disable? setting Considerations Enables ClipBook Viewer to store ClipBook Viewer will not be able to ClipBook Yes Disable information and share it with remote share information with remote computers computers. Allows management of Component System Event Notification stops COM+ Event No Enable Services by providing automatic working, which means that logon System/Syste distribution of events to subscribing COM and logoff notifications will not take m Application components place. Other applications, such as Volume Snapshot service, will not work correctly. Maintains an up-to-date list of computers Your computer will be unable to Enable this service, if you Computer Yes Enable on your network, and supplies the list to locate other Windows computers on need to share files with Browser programs that request it. The Computer the network other Windows Browser service is used by Windows- computers. based computers that need to view network domains and resources. Provides three management services: The associated management Required if you use the Cryptographic No Enable Catalog Database Service, which services will not function properly. Automatic Updates services confirms the signatures of Windows files; Windows service; Also Protected Root Service, which adds and used by other Windows removes Trusted Root Certification services, such as Task Authority certificates from this computer; Manager. and Key Service, which helps enroll this computer for certificates Allows the system to automatically obtain The system will be unable to obtain You can disabled this DHCP Client Maybe Enable IP addressing information, WINS server an IP address, WINS information, service if you do not use information, routing information, and so and the like, from a DHCP server DHCP. forth; is required to update records in and will need to be configured with Dynamic DNS a static address. Page 2 Copyright ©2005 CNET Networks, Inc. All rights reserved. For more downloads and a free TechRepublic membership, please visit http://techrepublic.com.com/2001-6240-0.html
  • 3. Windows XP services that can be disabled Service Description Safely Ramifications if disabled Suggested Special Disable? setting Considerations Ensures that shortcuts and OLE links Link tracking will be unavailable. Distributed Yes Disable continue to work after the target file is Users on other computers won't be Link Tracking renamed or moved by maintaining links in able to track links on this computer. Client the file system Coordinates transactions that span Distributed transactions will not Distributed Yes Disable multiple resource managers, such as occur. Transaction databases, message queues, and file Coordinator systems Resolves and caches DNS names, The system will be unable to Stopping this service will DNS Client No Enable allowing the system to communicate with resolve a name and will be able to result in the inability for canonical names rather than strictly by IP communicate only via IP address. A the computer to resolve address client may be unable to names to IP addresses. communicate with its domain controller. Collects, stores, and reports unexpected Error Reporting will occur only for Error Yes Disable application crashes to Microsoft kernel faults and some types of Reporting user mode faults. Allows event log messages to be viewed Administrators won't be able to view Event Log No Enable in Event log to assist in problem logs, including the security log, resolution increasing the difficulty of diagnosing problems and detecting security breaches. Enables management for applications Fast User Switching will be Doesn't work in domain Fast User Yes Disable that require assistance in a multiple user unavailable. environments anyway. Switching environment Compatibility Enables Help and Support Center to run The Help and Support Center will Help and Yes Enable on this computer be unavailable. Support Page 3 Copyright ©2005 CNET Networks, Inc. All rights reserved. For more downloads and a free TechRepublic membership, please visit http://techrepublic.com.com/2001-6240-0.html
  • 4. Windows XP services that can be disabled Service Description Safely Ramifications if disabled Suggested Special Disable? setting Considerations Enables generic input access to Human Hot buttons controlled by this Required for some quot;hot HID Input Maybe Disable Interface Devices (HID), which activates service will no longer function. buttonsquot; on newer and maintains the use of predefined hot keyboards. Can be safely buttons on keyboards, remote controls, enabled if these buttons and other multimedia devices don't work with this service disabled. Manages CD recording using Image This computer will be unable to This service can be IMAPI CD- Maybe Enable Mastering Applications Programming record CDs. disabled if you don't have Burning COM Interface (IMAPI) a CD-RW drive in your system. Indexes contents and properties of files Files will not be indexed. Indexing Uninstall this service if Indexing Yes Disable on local and remote computers; provides can speed searching. you don't plan to use it. Service rapid access to files through flexible querying language Provides network address translation, Networking services such as If you share your Internet Internet Maybe Disable addressing, name resolution and/or Internet sharing, name resolution, connection, you must Connection - intrusion prevention services for a home addressing and/or intrusion enable this service. Firewall (ICF) / or small office network prevention will be unavailable. Sharing (ICS) Provides end-to-end security between TCP/IP security between clients If you connect over an IPSEC Maybe Disable clients and servers on TCP/IP networks and servers on the network will be IPSec secured services impaired. connection, don't disable this service. Waits for new drives to be added and New disks will not be detected by Leaving this service Logical Disk Yes Enable passes required information to the LDM the system. enabled makes it easy to Manager administrative service; required to ensure add new drives to the dynamic disk information is up to date system. In a very high security environment, this should not be allowed. Page 4 Copyright ©2005 CNET Networks, Inc. All rights reserved. For more downloads and a free TechRepublic membership, please visit http://techrepublic.com.com/2001-6240-0.html
  • 5. Windows XP services that can be disabled Service Description Safely Ramifications if disabled Suggested Special Disable? setting Considerations Starts and allows configuration to take None; runs only when needed. Started by the Logical Logical Disk Yes N/A place when a new drive is detected or a Disk Manager service Manager partition/drive is configured only when needed. Do Administrative not disable if you have the Logical Disk Manager Service enabled. Manages Visual Studio debugging Visual Studio debugging Machine Yes Disable information will not be available. Debug Manager Transmits net send and Alerter service Alerter messages will not be Messenger Yes Disable messages between clients and servers. transmitted. This service is not related to Windows Messenger Manages software-based volume shadow Software-based volume shadow Leave set at Manual if Microsoft Yes Disable copies taken by the Volume Shadow copies cannot be managed. you intend to use Software Copy service Windows Backup. Shadow Copy Provider Enables an authorized user to access this Remote desktop sharing will be If you use NetMeeting, NetMeeting Yes Disable computer remotely by using NetMeeting unavailable. don't disable this service. Remote over a corporate intranet Desktop Sharing Manages the network and dial-up Network configuration will not be Network No Enable connections for the server, including possible; new connections can't be Connections network status notification and created and services that need configuration network information may fail. Provides network transport and security DDE transport and security will be Network DDE Yes Disable for Dynamic Data Exchange (DDE) for unavailable. programs running on the same computer or on different computers Page 5 Copyright ©2005 CNET Networks, Inc. All rights reserved. For more downloads and a free TechRepublic membership, please visit http://techrepublic.com.com/2001-6240-0.html
  • 6. Windows XP services that can be disabled Service Description Safely Ramifications if disabled Suggested Special Disable? setting Considerations Manages Dynamic Data Exchange (DDE) DDE network shares will be Network DDE Yes Disable network shares unavailable. DSDM Collects and stores network configuration Services such as ICS & ICF will not Enable if this computer Network Maybe Disable and location information and notifies function. has Internet Connection Location applications when this information Sharing enabled or if you Awareness changes. This service is a part of ICS are using the Internet (NLA) Connection Firewall. Allows users to log on to the network Users with versions of Windows Enable this service if this NT LM Maybe Disable using NTLM prior to Windows 2000 will be computer needs to log on Security unable to log in to the network. to pre-Windows 2000 Support computers or domains Provider Collects performance data for the Performance information will no Performance Yes Disable computer or other computers and writes it longer be logged or displayed. Logs and to a log or displays it on the screen Alerts Allows an administrator to add hardware The system will be unstable and Plug and Play No Enable to a server and have the server incapable of detecting hardware automatically detect and configure it changes. Retrieves the serial number of any Protected content might not be Portable Yes Disable portable media player connected to this downloaded to the device. Media Serial computer Number Manages all local and network print Printing on the local machine will be Disable this service if you Print Spooler Maybe Enable queues and controls all printing jobs unavailable. don't have a printer. Protects sensitive information such as Protected information will be Protected Yes Enable private keys from exposure except to inaccessible. Storage allowed persons and services Page 6 Copyright ©2005 CNET Networks, Inc. All rights reserved. For more downloads and a free TechRepublic membership, please visit http://techrepublic.com.com/2001-6240-0.html
  • 7. Windows XP services that can be disabled Service Description Safely Ramifications if disabled Suggested Special Disable? setting Considerations Provides network signaling and local, QoS aware applications with either Enable this service if you QoS RSVP Yes Disable traffic-control, set-up functionality for not function, or will not have their use QoS aware (Quality of Service) QoS-aware programs complete functionality. applications. and control applets Detects unsuccessful attempts to connect Users will need to manually Remote Yes Enable to a remote network or computer and connect to other systems. Access Auto provides alternative methods for Connection connection Manager Manages dial-up and virtual private The operating system may not This service is run on Remote Maybe Enable network (VPN) connections from this function properly. demand by the Remote Access computer to the Internet or other remote Access Manager Connection networks Manager Manages and controls Remote Remote Assistance will be Remote Yes Disable Assistance unavailable. Desktop Help Session Manager Allows processes to communicate The system will not boot. Don't Remote No Enable internally and across the network with disable this service. Procedure each other Call (RPC) Provides RPC name services similar to Systems that are running third-party Remote No Enable DNS services for IP utilities looking for RPC information Procedure will be unable to find it. OS Call (RPC) components do not use this Locator service, but programs such as Exchange do. Page 7 Copyright ©2005 CNET Networks, Inc. All rights reserved. For more downloads and a free TechRepublic membership, please visit http://techrepublic.com.com/2001-6240-0.html
  • 8. Windows XP services that can be disabled Service Description Safely Ramifications if disabled Suggested Special Disable? setting Considerations Provides a mechanism to remotely Remote systems will be unable to Some programs require Remote Maybe Disable manage the system registry connect to the local registry. this functionality in order Registry Hfnetchk uses this mechanism. to operate. Disabling it can affect the patch utility's operation. Manages and catalogs removable media Programs that are dependent on Removable Yes Enable and operates automated removable Removable Storage, such as Storage media devices Backup and Remote Storage, will operate more slowly. Enables multiprotocol LAN-to-LAN, LAN- Routing and Remote Access Better yet, don't install Routing and Yes Disable to-WAN, virtual private network (VPN), services will be unavailable. this service at all. Remote and network address translation (NAT) Access routing services for clients and servers on this network Enables starting processes under Users will be unable to use the Secondary Yes Disable alternate credentials. If this service is quot;Run Asquot; feature to elevate Logon stopped, this type of logon access will be privileges. unavailable Stores account information for local Services that rely on requests to If you use don't use Security Yes Enable security accounts, which, when started, the SAM database will not function DHCP to obtain an IP Accounts allows other services to access the SAM properly. Group Policy objects may address, this service can Manager not operate properly. be disabled. Allows the sharing of local resources such Resources can't be shared, RPC This service must be Server Yes Disable as files and printers, as well as named requests will be denied, and named enabled on Windows XP pipe communication pipe communication will fail. computers that share files or printers. Provides notifications for AutoPlay CD-ROMs and other devices will Much easier to leave this Shell Yes Enable hardware events not automatically function. enabled, and not much of Hardware a security risk. Detection Page 8 Copyright ©2005 CNET Networks, Inc. All rights reserved. For more downloads and a free TechRepublic membership, please visit http://techrepublic.com.com/2001-6240-0.html
  • 9. Windows XP services that can be disabled Service Description Safely Ramifications if disabled Suggested Special Disable? setting Considerations Manages access to smart cards read by This computer will be unable to If you're using a smart Smart Card Yes Disable this computer read smart cards. card reader, enable this service. Provides support for earlier smart card The computer will be unable to read If you're using a smart Smart Card Yes Disable readers attached to the computer legacy smart cards. card reader, enable this Helper service. Used to locate UPnP devices on your Your computer will be unable to SSDP Yes Disable home network. Used in conjunction with located uPnP devices on the Discovery Universal Plug and Play Device Host, it network. detects and configures UPnP devices on your home network Required to record entries in the event Certain notifications will no longer Leave enabled for System Event Yes Disable logs; notifies COM+ subscribers about work. For example, synchronization laptops to that power Notification logon and power-related events won't work, as it depends on notifications are passed connectivity information and to the user. Network Connect/Disconnect and Logon/Logoff notifications. Performs system restore functions, Automatic system restoration will While this service does System Yes Disable including saving periodic checkpoints not be possible. use up some system Restore resources, it can be invaluable for stand alone machines, particularly when a software install goes bad. Enables a user to configure and schedule Tasks will not be run at their Task Yes Disable automated tasks on this computer scheduled times. Scheduler Page 9 Copyright ©2005 CNET Networks, Inc. All rights reserved. For more downloads and a free TechRepublic membership, please visit http://techrepublic.com.com/2001-6240-0.html
  • 10. Windows XP services that can be disabled Service Description Safely Ramifications if disabled Suggested Special Disable? setting Considerations Required for software distribution in a NetBIOS over TCP/IP clients For small networks, this TCP/IP Yes Disable Group Policy (may be used to distribute including Netlogon and Messenger service may be essential NetBIOS patches) and provides support for might stop responding. Disabling if you share files with Helper NetBIOS over TCP/IP and NetBIOS name may also affect the ability to share others. For larger lookups resources. networks with central file servers, keep disabled on desktops. Provides Telephony API (TAPI) support The function of all dependent Only needed for Telephony Yes Disable for clients using programs that control programs will be impaired. modem/fax modem use. telephony devices and IP-based voice connections Enables a remote user to log on to this Remote user access to programs Telnet Yes Disable computer and run programs; supports might be unavailable. various TCP/IP Telnet clients, including UNIX- and Windows-based computers Allows users to connect interactively to a May make your computer Terminal Yes Disable remote computer; Remote Desktop, Fast unreliable. To prevent remote use Services User Switching, Remote Assistance, and of this computer, clear the check Terminal Server depend on this service. boxes in the Remote tab of the System properties control panel item. Provides user experience theme Themes cannot be used. Themes Yes Disable management Manages an uninterruptible power supply The UPS cannot communicate with Uninterruptibl Yes Disable (UPS) connected to the computer the computer. e Power Supply Used in conjunction with SSDP Discovery Your computer will be unable to Universal Plug Yes Disable Service, it detects and configures UPnP located uPnP devices on the and Play devices on your home network network. Device Host Page 10 Copyright ©2005 CNET Networks, Inc. All rights reserved. For more downloads and a free TechRepublic membership, please visit http://techrepublic.com.com/2001-6240-0.html
  • 11. Windows XP services that can be disabled Service Description Safely Ramifications if disabled Suggested Special Disable? setting Considerations Manages synchronous and asynchronous Certain file transfers will not take Upload Yes Disable file transfers between clients and servers. place. Manager Driver data is anonymously uploaded from these transfers and used by Microsoft to help users find needed drivers. The Driver Feedback Server asks the client's permission to upload the computer's hardware profile and then search the Internet for information about how to obtain the appropriate driver or get support. Manages and implements volume Shadow copies will be unavailable Enable this service if you Volume Yes Disable shadow copies used for backup and other for backup and the backup may fail. use Windows Backup on Shadow Copy purposes this desktop. Enables Windows-based programs to These functions will not be WebClient Yes Disable create, access, and modify Internet-based available. files Manages audio devices for Windows- Audio devices and effects will not Even though it can be Windows Yes Enable based programs function properly. disabled, without this Audio service, you will get no sound. Provides image acquisition services for Programs that require images, such This service is required Windows Yes Enable scanners and cameras as Windows Movie Maker, won't for some scanners and Image function properly. cameras. If you don't Acquisition have a scanner or a (WIA) camera, you can disable this service. Adds, modifies, and removes applications People can install no programs, or Windows Yes Enable provided as a Windows Installer (*.msi) make use of Add/Remove Installer package programs. Page 11 Copyright ©2005 CNET Networks, Inc. All rights reserved. For more downloads and a free TechRepublic membership, please visit http://techrepublic.com.com/2001-6240-0.html
  • 12. Windows XP services that can be disabled Service Description Safely Ramifications if disabled Suggested Special Disable? setting Considerations Provides system management System management and Windows No Enable information; required to implement performance information will be Management performance alerts using Performance unavailable. Instrumentatio Logs and Alerts n (WMI) Monitors all drivers and event trace (extension of WMI only) WMI Driver Yes Enable providers that are configured to publish Extensions Windows Management Instrumentation (WMI) or event trace information Uses NTP to keep computers in the Time synchronization won't take Windows Yes Enable domain synchronized place. Time Automatically configured WiFi (802.11) You will have to manually configure Enable this service if Wireless Zero Maybe Disable network adapters wireless networking. you're using wireless Configuration networking. Provides performance library information This service runs only when WMI Yes Enable from Windows Management Performance Data Helper is Performance Instrumentation (WMI) providers to clients activated. Adapter on the network Provides network connections and The computer will be unable to Workstation Yes Enable communications using the Microsoft connect to remote Microsoft Network services Network resources. Scott Lowe has held a variety of jobs in the information technology field. Although he has been involved primarily in IT management and network/systems engineering, he has also served as a DBA, help desk technician, and several other job roles. He is currently the IT Director for Elmira College, a small private college located in Elmira, NY. Page 12 Copyright ©2005 CNET Networks, Inc. All rights reserved. For more downloads and a free TechRepublic membership, please visit http://techrepublic.com.com/2001-6240-0.html
  • 13. Cheat sheet: Windows XP services that can be disabled Additional resources • Sign up for our TechRepublic Downloads Weekly Update, delivered on Tuesdays. • Sign up for the Windows XP newsletter, delivered on Thursdays • Sign up for the Windows 2000 Professional, delivered on Tuesdays • Sign up for our TechRepublic NetNote, delivered on Mondays, Wednesdays, and Thursdays. • Check out all of TechRepublic's newsletter offerings. • Cheat sheet: Windows 2000 services that can be disabled • Worksheet: Windows Server 2003 default services Version history Version: 1.0 Published: June 15, 2005 Tell us what you think TechRepublic downloads are designed to help you get your job done as painlessly and effectively as possible. Because we're continually looking for ways to improve the usefulness of these tools, we need your feedback. Please take a minute to drop us a line and tell us how well this download worked for you and offer your suggestions for improvement. Thanks! —The TechRepublic Downloads Team Page 13 Copyright ©2005 CNET Networks, Inc. All rights reserved. For more downloads and a free TechRepublic membership, please visit http://techrepublic.com.com/2001-6240-0.html