Nov 04, 2025 12:05:00

An update has been released to fix the problem of Windows 'Update and Shutdown' failing, but now Task Manager cannot be closed

Windows has had a long-standing issue where clicking 'Update and Shutdown' would result in the computer restarting instead of shutting down, but this was finally fixed in the preview update ' KB5067036 ' released on October 28, 2025. However, KB5067036 introduces a new issue where the Task Manager window does not actually terminate even after closing.

October 28, 2025—KB5067036 (OS Builds 26200.7019 and 26100.7019) Preview - Microsoft Support

https://support.microsoft.com/ja-jp/topic/ec3da7dc-63ba-4b1d-ac41-cf2494d2123a

When you apply an update that requires a reboot to Windows, the power menu displays 'Update and Shutdown' and 'Update and Restart.' The 'Update and Shutdown' option has long had a problem where it would restart your computer even though you wanted to shut it down.

The release notes for the preview update 'KB5067036' released on October 28, 2025 are below. It turns out that the issue of not being able to actually shut down with 'Update and Shutdown' has been resolved.

KB5067036 has been released as a preview update that gives you an early look at the content included in the November 2025 security update. Therefore, to apply KB5067036, you need to click 'Download and Install' from the Windows Update screen in the Settings app.

While KB5067036 includes several feature updates in addition to the shutdown fix, it also revealed a new issue where Task Manager processes remain running even after the user closes the window. According to Microsoft's

problem notification page , multiple instances of Task Manager can slow down other applications.

Microsoft recommends running the command prompt as an administrator and running the 'command to end the Task Manager process.' The correct command is ' taskkill.exe /im taskmgr.exe /f ,' but please note that the Japanese documentation from Microsoft is machine-translated to the incorrect command.

Although the GIGAZINE editorial team's PC did not experience any Task Manager issues after applying KB5067036, it may affect your work depending on your environment. Because KB5067036 is only a preview update, we recommend waiting until the monthly security update distribution on November 10, 2025 (Japan time).