How to resolve Win 11 won't completely shut down and won't restart?

My Computer would shut down, but not stay turned off- something would wake it up and it would restart- it happened both in windows and linux:

somehow either my MBR or bios or cmos got corrupted and i finally discovered i had to take out th3 battery (desktop, not laptop) and reset the bios- not sure exactly what got corrupted- but something did-

Been struggling with the issue for days, and tried a ton of different things like that set of instructions i posted, all to no avail- I even swapped out the powersupply as i thought that was the issue, but nope, the prob was still there. (Had an old psu to,try thankfully)

The issue was that i would shut the computer down, and it would not stay shut down but reboot- had to hold down the power button till it shut down which isn’t a good way to shut down.

Anyway, resetting the bios did the trick... To do so- 1: Shut down computer by power button - make sure it stays shut down-

2: then unlpug power chord-

3: next take battery on the motherboard out for about 5 minutes or so-

4: replace battery,

5: plug power chord back in- and with any luck, it will reset whatever has gone wrong-

Click on the Window Key and S key at the same time.
Type Device Manager and hit enter.
Click Display Adapters.
Right-click on the Nvidia graphics driver and select Disable device.
Restart the computer.

Go to the Device Manager again and click Display Adapters.
Right-click on the Nvidia graphics card, and select Properties.
Click on the Driver tab and select Enable.
Restart the computer.
See if this fixed the problem.

Hello

I have same problem. Only thing that worked is when I disabled Nvidia graphic driver, but enabling it back brought problem back. I have Nvidia geforce experience and I have tried reinstalling drivers and it didn't work. I don't know how to deinstall the drivers, though.

I'm having the same issue, my computer won't shut down or restart. I've tried all the suggestions here and have had no luck.

Thanks for this! Finally, after trying so many things, this worked!

After an extensive search and many non-working solutions...

I've had the same problem for months. Have to hold down the power button to make the computer shutdown on its own.

The fix is a surprising one...

Device Manager -> Universal Serial Bus Controllers

Go down the list and any of them that has a "Power Management" tab, uncheck "Allow the computer to turn off this device to save power".

At least this worked for me. Apparently its the USB controllers preventing the proper shutdown for some reason.

Thanks Robert! It worked for me like a charm after trying every method here! The problem started with the most recent update from Windows. Didn't have this problem before.