Still trying various fixes...
I did see that Windows Updates has been trying to install the same update for months and fails every time...
Right now I have the auto update off.
But, I did try to install the critical update and it gets to 99% and no more...
Windows 7 Service Pack 1 for x64-based Systems (KB976932)
It's been trying to install this for many years and failed!!!
Error details: Code 800B0100
Update type: Important
Windows 7 Service Pack 1 is a recommended collection of updates and improvements to Windows that are combined into a single installable update. The service pack can help make your computer safer and more reliable. A typical installation will take about 30 minutes to complete, and you will have to restart your computer about halfway through the process.
Last successful update is Windows Malicious Software Removal Tool January