@雄太 鈴木
Hi,
Have you set Specify deadlines for automatic updates and restarts group policy?
This GPO will occur regardless of active hours, and the user will not be able to reschedule.
https://www.tenforums.com/tutorials/129351-specify-deadlines-automatic-updates-restarts-windows-10-a.html
Please note: Information posted in the given link is hosted by a third party. Microsoft does not guarantee the accuracy and effectiveness of information.
You may refer to the following link for manage device restarts after updates:
https://learn.microsoft.com/en-us/windows/deployment/update/waas-restart
Restart will be disturbed by many reasons. The current situation is that the restart is not successful within the non-active hour.
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