I got locked in one of those update loops. You know what I mean, probably. My Windows 10 would start an automatic update, then fail, and then reset itself to a previous version. This would happen all of the time. I eventually decided to back everything up on an external drive and simply reinstall Windows 10 from scratch. Then I found out that the CD (or maybe it is a DVD) was lost in our move. I have the ("OEM"?) sticker but the actual product CD has been lost in the move and I can not find it. Does anyone know how I can reinstall the OS with just the product ID etc.? Someone suggest this link as a way to fix the problem: How to fix Windows Update in Windows 10 if it becomes stuck . . . After doing all this, the update window says I am all up to date: But the update history says that the last install failed: So, what is up with that? I noticed that there is a recovery option to reset my PC But this takes me back to the problem of not having the CD I guess if I am up to date, I don't need the CD now. But it would be nice to know for future use how to do this.