The fix is arriving through the optional KB5067036 update for Windows 11 25H2, which Microsoft began rolling out last week.
Starting with Windows 11 25H2 Build 26200.7019 (or 26100.7019 on 24H2) and newer, “Update and shut down" will shut down, not reboot.
A big update for Windows 11 versions 25H2 and 24H2 is now available, and it brings the new Start menu and quite a lot of ...
Check for the Update Windows 11 has been accessible for some time as an update on compatible Windows 10 systems, so your next step should be to see if it's already available on your PC. In Windows 10, ...