This has happened before. It took about 8 hours before I could use the computer again.
I'm not technically savvy. Nope. But I wouldn't let it beat me.
This time, after logging on and consequently shutting everything down, over and over again, I had an electric light moment.
When the screen first opened, I could choose Windows 10 or System Restore.
I chose the latter, crossing my fingers against anything going wrong.
When it finally opened—a wait of 1 or 2 minutes—System Restore came with a message that all personal data would be erased.
I didn't want that, so I quickly clicked on the X to cancel.
What happened next surprised me. The opening music accompanied the full working screen.
Phew! So that's what I'll do next time.
Any problems with your computer?