Transfer important stuff to a backup drive.
After that, try to find out if it is a bad update or hardware issue.
In the morning, I will transfer the entire hard drive to the slave. For now, its been photos and documents, but I think it’s gone beyond that.
The rest, I’m not sure how to do because I don’t know what’s causing the problem. I get a white screen when the system is going wonky, and it won’t allow me to do anything else.
So I reboot and restore. And that indicates (to my uneducated mind) that there is something going on that I need to be on top of.