If Windows 11/10 shuts down instead of restarting when you press the Restart button, check Power button options and settings ...

Have you ever seen the Windows login screen on your monitor and thought, "Wait a minute, didn't I tell it to shut down?" For a while, I doubted myself: Maybe I had told Windows to "update and ...

Select Enable > Apply/OK. This policy setting prevents users from performing the following commands from the Start menu or Windows Security screen: Shut Down, Restart, Sleep, and Hibernate.