Hi omnidekka
Instead of changing the Value, Delete the key as mentioned below
1. Open the Start Menu.
2. In the white line (Start Search) area, type
regedit and press Enter.
3. Click the
Continue button for the UAC prompt.
4. In regedit, go to:
HKEY_CURRENT_USER\Software\Microsoft\Shared Tools\MsConfig
5. In the right pane of
MsConfig, right click on NoRebootUI and click Delete.
6. Click on
Yes to confirm.
7. Close regedit.
Please Post back and let us know if this resolved the issue - thank you
Ken
Microsoft Answers Support Engineer
Visit our Microsoft Answers Feedback Forum and let us know what you think.