A Windows 7 Ultimate PC is connected to a WSUS intranet server, like a lot of other PCs here which are functioning fine.
The same 3 updates keep presenting themselves as avaiable for installation, even when they have been successfully installed and the PC rebooted. The Control Panel shows these updates have been installed okay.
There is a MS KB article on how to troubleshoot this problem, but they suggest manually installing downloaded updates in Safe Mode, which is impossible in Windows 7 (Ultimate), as the Windows Installer won't operate in Safe Mode.
I performed a clean boot with disabled non-MS services, and disabled startup items, manually installed the downloaded updates, rebooted, and Windows Update again said they were available for install on the next boot.
There are no errors in the Event Log, the PC has plenty of space, and when I run the manually downloaded update installers, I do so as the domain admin. The PC is running Symantec End Point protection, which all other PCs are running and have no problem with.
The updates in question have installed on another PC running Windows 7 Professsional.
I don't think we have any other PCs running Win7 Ultimate except the problem PC in this thread.