Gawdzilla Sama
TImeToSweepTheLeg
Had that, the problem seemed to be Windows Update, and solved by running the Windows Update diagnostic.
The real fun with Windows 10 was getting a NAS backup drive working; a series of random and rare Windows errors with no rhyme or reason.
I'll check back in a few decades to see if they cleared that up. Meanwhile I'll keep my Win7 install disks close and safe.