If Windows Update Stops Offering Updates... (VISTA)

Or if Windows Defender won’t let you get the latest definitions.

Check the file C:\Windows\WindowsUpdate

Scan for the following error

“Client has an invalid PID”

If so then perform the following.

*Open an elevated command prompt. (Go to Start -> Programs -> Accessories,

right-click on Command Prompt, and choose “Run as administrator”.)

*In the command prompt window, run the following two commands:

net stop wuauserv

rmdir /s C:\Windows\SoftwareDistribution\DataStore

Don’t close the command prompt window yet.

*Rename the C:\Windows\WindowsUpdate.log file to some other name. (This

isn’t actually necessary, but will make it much easier to distinguish the

post-reset activity from the pre-reset activity.)

*Run the Registry Editor. (Go to Start -> Run, type “regedit” and press

Enter.) Warning: Incorrect registry changes can damage your Windows

installation and require reinstalling Windows or other software; be very

careful when following these steps.

*In the Registry Editor tree, find


Right-click on WindowsUpdate in the tree and choose Delete.

*Back in the command prompt window, run this command:

net start wuauserv

*You can now close the command prompt window and the Registry Editor window.

*Now run the Windows Update control panel


Do we really need to post information on “how to keep your pirated OS working” on qt3?

EDIT: HURRR I didn’t bother looking at the link - didn’t realize that’s actually MS’s advice. My bad!

No worries. I have an OEM copy so I can’t get phone support and I though others might run into the same issue.