Shutting down laptop during Update installation?

I've found my systems automatically download updates in the background from time to time after shutting down or rebooting, and the worst that happens is if it was done in the middle of a download, the download will have to restart which can take extra time (say it takes 30 min to download, and I restarted at 85% downloaded, so now it has to start a 0% again). I've also had no issues after updates have 100% downloaded, and the icon shows "Restart to finish installing updates", but I shut down instead. When I turn it on the next time I see the same notice, and then restart when I have time.

The things you don't want to do is manually check, and shut down or reboot in the middle of that download, or especially during the install of updates.

But having your system set to automatically check, download, and install, will (should) result in no issues other than the restart of the downloads if you shut down or restart even without checking the progress in settings. Windows is coded to expect that kind of behavior, and is safeguarded from damages since Microsoft doesn't expect the average user to always check the Updates progress before shutting down or rebooting.

Think of it like a browser download, and you close your browser in the middle of the download. The next time you open your browser you'll have to download the entire thing since the first one was cancelled when you closed the browser.

I have Win10 Pro and I set the Group Policy setting for Windows Update to notify for Download. However, the Windows Defender Security Intelligence definitions always keep notifying me almost every day and sometime even during presentations which can be disturbing as well.

Is there a way to isolate the Defender definition notifications and Windows Update notifications?

I remember somewhere here on Tenforums that you can create a running script in the background using Task Scheduler.

The issue is, that if Windows Updates catches to detects that Defender definitions are out of date, then the Defender notifications will prompt from the Windows Update. If Defender detects it first, then it would be that Defender will update the Security Intelligence updates automatically in the background without the notifications.

win10freak said:

I remember somewhere here on Tenforums that you can create a running script in the background using Task Scheduler.

Windows Defender will be updated automatically in the background without notifications.

Using CMD script and VBScript to control Windows Update

All of the following have been installed in the background.