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Automatic Updates (System Services for the Windows Server 2003 Family and Windows XP Operating Systems)

Applies To: Windows Server 2003, Windows Server 2003 R2, Windows Server 2003 with SP1, Windows Server 2003 with SP2

Service Name: Wuauserv

Executable Name: svchost.exe -k netsvcs

Log On As: LocalSystem

Description: Enables the download of updates from Microsoft’s Windows Update Web site.

This service keeps your computer up-to-date automatically with the latest updates, drivers and enhancements from Microsoft. You no longer have to search for critical updates and information; Windows Update delivers them directly to your computer if configured. Windows recognizes when you are online and uses your Internet connection to search for downloads from the Windows Update page on the Microsoft Web site. A message appears on your desktop to let you know when new updates are available.

The Automatic Update feature can be turned off through the Systems setting in the Control Panel or by right mouse clicking My Computer and selecting Properties.

You can also use the MMC Group Policy Object Editor snap in administrative template to configure an intranet server to host updates from the Microsoft Update Web sites. This setting lets you specify a server on your network to function as an internal update service. The Automatic Updates client will search this service for updates that apply to the computers on your network.

Stopping or disabling this service has no effect on the rest of the operating system. The user will have to update their computer manually from the Windows Update Web site located at

Available on: Windows XP Home, Windows XP Professional; Windows Server 2003, Standard Edition; Windows Server 2003, Enterprise Edition; Windows Server 2003, Datacenter Edition and Windows Server 2003, Web Edition.

Installed through: Default operating system installation

Installed By: Default

Startup type: Automatic

Service status: Started

This service depends on the following system components: None

The following system components depend on this service: None

IP Port Numbers used:

TCP: 80

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