Something damaged in Windows, it seems.
What I would do:
1. Restore the latest image backup of my OS drive (my data is on another drive).
2. Reset from the recovery drive I made. See https://answers.microsoft.com/en-us/windows/forum/windows_10/how-to-create-a-recovery-drive-for-reinstalling/58df9c7d-84de-4652-9952-8bac34abc6c5 . It's highly recommended to make one after each big feature update of Window.
3. Recover from the recovery drive (another option from the troubleshoot menu)
4. Reinstall Windows from the .iso I downloaded to do that big feature update.
If you don't have have that image backup nor made a recovery drive not that .iso you can downloiad it from https://www.microsoft.com/software-download/windows10
Windows loads, gets to screen that is b4 sign in screen but will not allow access to log in screen, any mouse click or keyboard button click starts to go to log in screen but goes back to homescreen. Usually u click any button to get to login, screen appears, enter password then your in, but cant do that atm .
Any assistance would be greatly appreciated.
Note: Subject line was edited by forum admin for clarity.