I did a forum search and I didn't see this, so I hope I am not being redundant with this post.
The other day, my wife awoke to find her laptop showing a screen saying "Restoring your previous version of WIndows."
Mind you, Windows 10 was installed without prompting about 5 months ago.
Anyway, she did not initiate a previous OS restoration, nor would she know HOW.
It did not complete, and Windows 10 is still installed. I believe this has happened a few times already and I want to know, before this thing gets corrupted somehow, if anyone else has had this experience and how they solved it. It is very puzzling and equally ANNOYING.