Solved It!
With an additional modification I've been able to make it so that Windows will download updates, but it doesn't install them or restart the computer until I tell it to do so. Finally I can leave my work running overnight!
Combining the original instructions from Henning Idsøe as well as the instructions found here, I did these steps:
- Win+r
- gpedit.msc
- Edit Computer Configuration->Administrative Templates->Windows Components->Windows Update->Manage end user experience->Configure Automatic Updates
- Set it to Enabled and 3 - Auto download and notify for install
- Edit Computer Configuration->Administrative Templates->Windows Components->Windows Update->Legacy Policies->No auto-restart with logged on users for scheduled automatic updates installations
- Set it to Enabled
- Restart the computer (I don't know if this is required, but I did it)