Uninstalled DiskGenius. No change.
Ran SFC /Scannow yesterday. There are corrupt files that SFC could not repair. I think we may have to try a repair install, if there is such a thing and if I can find the disc.
Also, when trying to find the product key for Windows Server 2012, using Belarc Advisor, it could not update because it couldn't get an Internet connection. Maybe whatever caused that is also causing the Windows Update problem. Maybe?
Appreciate your continued work on this.