I woke up about 3AM with a screen I've never laid eyes on before telling me my computer would not restart. I let it check the computer twice; it kept giving the same message. It then came up with the standard options of System Restore, Command Prompt, Image Recovery, etc. I tried twice with System Restore-once restoring back to 11-8 and then to 11-1. It kept saying it wouldn't restore, so I gave up and was going to dig out one of my older computers until such time as I could get a new one (I was pricing some yesterday as a matter of fact). Out of the blue, it started booting up and told me it had restored to 11-1. Go figure! I did turn off automatic updates, something I should've done a while back.