As of somewhat recently, it’s possible to defer updates through the settings menu without using the group policy editor (though only on Pro, Education and Enterprise):

https://support.microsoft.com/en-us/help/4026834/windows-10-...

Which policy? Does it work on non Enterprise versions?

You could try this: https://news.ycombinator.com/item?id=18157968

The settings I suggest don't disable it entirely - though I think that's an option, if not one I'd use myself - but it does let you choose when things get installed, after downloading them in the background.

I've been quite happy with this; I generally do want updates when they come out, but also want the option to potentially reliably defer them (or, more precisely, the potential reboot...) for a day or two.

(As for Windows versions, I use Windows 10 Professional.)

No. Windows removed group policies for Pro users for some reason after win7.

No, it works fine in Windows 10 Pro. I got Pro specifically for that reason. When you alter the settings, then Windows Update shows "*Some settings are managed by your organization" and a link to see what group policies are set.