Big Sur continued issues

I have a Retina display iMac from Sept. 2017 (I can't get it to come up, so am not sure) that came with the last Sierra install (or I'd get High Sierra but it was too buggy).

Apple managed to get my spouse to take control of the computer and mangled it. It was fixed a couple months ago but now :start keeps rebooting obviously waiting for java to complete doing something (beach ball displays) - gets to about 3/4 rebooted; sits for 20 mins then flashes to the exact reboot point. Rinse and repeat from :start.

Leave it to Apple to create something new after seeing this pattern for several reboots. After booting and rebooting several times, I got to the ID to sign in. Slow doesn't begin to describe what's going on. I know memory gets trounced with Big Sur it's why I didn't want that blasted OS.

I've unplugged the mac from the back and the outlet for about 30 seconds and tried again.

Help, please. This is beyond nuts. When these last computers die, I'll welcome the blue screen of death. Ran to Apple to stop it but I just got other issues on very expensive machines. Others are saying the same thing.


Big Sur continued issues
 
 
Q