Windows 10: Why does Restart mean the same as Update & Restart?

I have a near-6-year-old PC which is about to be replaced by a new one, but while I'm just in the process of installing software I need which I use on the current one, the current one is trying to force the 20H2 update on me. This is a PC which - when I tried to just Restart, in February - it was forced to try and update from 1903 which it's currently on to 1909. For reasons best known to itself, it tried to install it, then did a BSOD three times, rebooted again, said 'uninstalling updates' I've had that a few times over the years, then did a BSOD again, then rebooted, then finally u

:)

 

Random restarts

when you start the computer up press F8 repeatedly until you get a list of how to start windows, choose do not automatically restart on system failure. if your getting bsod's list what your getting here so we can further help you. IF the system is not getting bsod's and still restarting as you say then i would look into getting a line conditioner for your computer as you might be having power issues.

 

Computer mysteriously restarts....

You mean before the restart started, you updated your motherboard drivers and video card drivers?

 

Inexplicable restarts

Thanks for your patient help and analysis, zbook. I'll step through some of your suggestions over the next few days - there's a lot to do and some look a bit hairy! That is, for a PC that is working sweetly right now...

Meanwhile, as requested in the BSOD thread (sorry, I misunderstood and posted there by mistake), I've attached both ZIP files.
--------------------
One step I did try right away was to answer your question about whether my BIOS is up-to-date. I had no success at the AMI site but did get some info from this commercial site:





It was one of the '9' (I counted 10) listed here:





Terry, East Grinstead, UK