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.
9don MSN
Windows 11 finally fixes the long-broken “Update and shut down” option that has plagued me for years
Windows finally fixes a shutdown bug that had users second-guessing themselves for years. And now update and shut down works ...
Both Windows 10 and Windows 11 have a bug that causes your PC to restart when you choose the Update and shut down option.
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