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#21
Yes, windows 8, 8.1, and even 7 I think
The computer probably was in standby mode (sleep), not completely off. So some event (like Windows Update) woke it up. Another explanation would be setting a specific hour to switch on automatically at the BIOS, but since you didn't do that the first case is more probable.
This is the first time I've had it happen.... and I've never heard of it happening before...
I don't know if it would have been in sleep mode or not, but I do know I was clicking on Power/Sutdown and the computer would, I'll say, shutdown....
But as I said it was an easy fix, I just disabled it under Device Manager/Network Adapters/Power Adapters... and it's fine ever since...
At some point today or tomorrow, I'm going to try a clean install of Windows 10...
I currently have two computers that exhibit similar behavior. One sometimes won't turn on after going to sleep (force restart), and a different computer entirely will not shut down. I've spent many hours on the two. The kicker is a have matched each of them to many identical computers in hardware and software (in a business), and the other computers work flawlessly.. just not those two.
I can only guess something went wrong with their hardware, but too far gone to RMA. The behavior is the same when a new OS is installed.
I guess blaming ol' MSoft is probably not the way to go in my case.
Have you tried updating the chipset drivers? Maybe some device doesn't work properly because of Microsoft generic drivers. Try updating the chipset drivers directly from Intel/AMD and see if that makes any difference.
I have not read this whole thread so this may have already been suggested, but turn off Fast Startup. It can negatively affect both shutdown and startup.
Fast Startup - Turn On or Off in Windows 10 - Windows 10 Forums
You know, I kept reading about that on this forum, don't know why I never thought to try it out on these computers. So far got one off of fast startup, but kept secure boot enabled (using UEFI). The other will have to wait till I find an appropriate time to restart the computer. Thanks for the tip!
I'll mention if I notice any changes.