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Disable system auto restart after installing Windows updates

Support for Windows XP has ended

Microsoft ended support for Windows XP on April 8, 2014. This change has affected your software updates and security options. Learn what this means for you and how to stay protected.

Author:
Raghu Boddu MVP
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SUMMARY
After installing the downloaded updates, Windows XP will automatically restart the PC, to apply all the updates.
CAUSE
This is not an issue and is by design. However, this has been addressed in Service Pack 2, where Windows XP SP2 installed PCs will install the downloaded updates at the time of restarting the PC. In pre SP2 systems, this feature is not available. The following registry modification will disable the auto restart feature.
RESOLUTION
It is always recommended to have a good backup of Windows registry before dealing with it. To know more about backing up Windows registry, visit:
 

 
Go to registry editor and navigate to the following registry key:
 
HKEY_LOCAL_MACHINE \Software\Policies \Microsoft\Windows \WindowsUpdate\AU
 
Change the "NoAutoRebootWithLoggedOnUsers" DWord value to the required number.
 
0 = False (Allow auto-reboot)
1 = True (Disallow auto-reboot)
 
Save and restart Windows Operating system.
Properties

Article ID: 555444 - Last Review: 08/30/2005 16:34:44 - Revision: 1.0

Microsoft Windows XP Home Edition, Microsoft Windows XP Professional, Microsoft Windows XP Media Center Edition 2002, Microsoft Windows XP Service Pack 1

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