The fix is arriving through the optional KB5067036 update for Windows 11 25H2, which Microsoft began rolling out last week.

Microsoft fixes Windows’ long-standing “Update and shut down” bug in Windows 11. Update KB5067036 stops unwanted restarts, ...

Windows finally fixes a shutdown bug that had users second-guessing themselves for years. And now update and shut down works ...

Anew Windows 11 update finally fixes a long-standing shutdown glitch that caused PCs to reboot instead of powering off — 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.

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

Windows has released its latest update for Windows 11, and it finally fixes a problem that has been plaguing Windows users ...