Both Windows 10 and Windows 11 have a bug that causes your PC to restart when you choose the Update and shut down option.

Setting a timer to shut down your Windows PC can be helpful in many cases. For example, if you are downloading a large piece of software or a game, you can set your computer to shut down after a ...

Starting with Windows 11 25H2 Build 26200.7019 (or 26100.7019 on 24H2) and newer, “Update and shut down" will shut down, not reboot.

It is the first thing you can try to bypass the problem temporarily. If one or more users are already logged in, you must shut down your PC again. You can restart your computer and then shut it down.

According to Windows Latest, Microsoft has fixed the "Update and shut down" button to actually shut down your PC when it's ...