Disable Windows 10 automatic restart after updates

1. Click on the “Start” button and type
   gpedit.msc
   press Enter.
2. In the Local Group Policy Editor, go to
   Computer Configuration ->
   ->Administrative Templates->
   -> Windows Components->
   -> Windows Update
3. Double-click on “No auto-restart with automatic installations of scheduled updates”.
4. Select "Enabled", and then click "OK".
5. Close the local group policy editor.

Source: https://answers.microsoft.com/en-us/windows/forum/all/disable-windows-10-automatic-restart-after-updates/16f1826d-a796-4de8-ac99-1d625420d265?auth=1