If it's still relevant, maybe this will work:

1. Open gpedit (if you're on Windows Home you can put gpedit on the system through CMD - scroll to the "Run Command Prompt" section)
2. Navigate to Computer Configuration > Administrative Templates > Windows Components > Windows Update
3. In the "Legacy Policies" folder:

• Enable "No auto-restart..."
• (that folder also has a policy to "Allow Automatic Updates immediate installation" but apparently it doesn't do anything according to Microsoft)

4. In the "Manage end user experience" folder:

• Disable "Always automatically restart.."
• Enable "Configure Automatic Updates" and select "4 - Auto download and schedule the install", then select "Every Day" and choose an hour for the installation
• Enable "Display options..." and select "2 - Disable all notifications..."
• Enable "Turn off auto-restart..." and set the active hours when you don't want it to restart

edit: adding that you can also use a program like WAU Manager to automatically download and install the updates in a specific time (screenshot for the settings, click on Save and Apply after choosing the settings)