Troubleshooting: WSUS won’t update a computer
Problem – You’ve deployed an extra Windows computer in your organization but it isn’t pulling new software updates from your WSUS server. What’s wrong?
Possible solution – You may have cloned the new computer from an existing master image without running Sysprep on your master image to reset the SIDs and other machine-specific identifiers. Not running Sysprep can cause the new Windows installation to fail to pull updates from WSUS. Make sure you ran Sysprep on your master image.
Mitch Tulloch is a seven-time recipient of the Microsoft Most Valuable Professional (MVP) award and widely recognized expert on Windows administration, deployment and virtualization. For more tips by Mitch you can follow him on Twitter or friend him on Facebook.