It was the kind of month admins dread: Mysterious problems on hundreds of machines, with no apparent cause or cure. Toss in the holidays, and we had a whole lot of Mr. and Ms. Grinches in the industry.
Fortunately, it looks like the problems have been sorted out at this point. Individual users had many fewer problems. Microsoft’s left and right hands still aren’t talking on the 1909 team, but what else is new…Win7 hang on 'Preparing to configure Windows'
Microsoft dropped a new Servicing Stack Update for Windows 7 on Dec. 10, and it gummed up the works for many. Here’s a good summary on Reddit from poster Djaesthetic: