Microsoft has issued a patch today because Windows XP users cannot update their computers with the stealth update that was included in the latest batch of patches.

“When an XP repair CD is used, it replaces all system files (including Windows Update) on your machine with older versions of those files and restores the registry. However, the latest version of Windows Update includes ‘wups2.dll’ that was not originally present in Windows XP. Therefore, after the repair install of the OS, wups2.dll remains on the system, but its registry entries are missing. This mismatch causes updates to fail installation,” said Nate Clinton who is the program manager.

Source: PC World