Disable system auto restart after installing Windows updates

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Article ID: 555444 - View products that this article applies to.
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:
 
http://support.microsoft.com/default.aspx?kbid=322756
 
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: August 30, 2005 - Revision: 1.0
APPLIES TO
  • Microsoft Windows XP Home Edition
  • Microsoft Windows XP Professional
  • Microsoft Windows XP Media Center Edition 2002
  • Microsoft Windows XP Service Pack 1
Keywords: 
kbpubmvp kbpubtypecca kbhowto KB555444
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