Be sure to edit the registry responsibly. Contact us for help.

Windows Registry Editor Version 5.00

[HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\MusNotification.exe]
"Debugger"="cmd.exe /c echo %DATE% %TIME% suppressed automatic reboot >> C:\\UpdateOrchestrator.log"

It blocks automatic restarts completely. Period.