Well but if you op-out you op-out of everything, including security updates. There's no "I want security updates but no random feature/interface changes" button.
Aren't all Windows Update packages optional? This is what I see when I look at Windows update on 8.1 (I think 7 had similar options):
http://imgur.com/MxRVZ94
As someone else mentioned, to support the enterprise Microsoft makes updates piecemeal and optional.
I had Windows 8 here, Windows 8.1 force-installed itself, I found no way to opt out, or even to control when to update, I was working one day and it suddenly decided to shut me out and update itself to 8.1, there was no "cancel" or "wait" button.
So, MS already pulled a stunt like that recently, why they would not do it again, specially if they want people to use some shiny new tech part of their 3e strategy?
