Not updating to Win 10 won't save you, I'm afraid.

Better start looking for those XP, since they're going to patch in this "feature" into 7 and 8 too:
http://winaero.com/blog/telemetry-and-data-collection-are-coming-to-windows-7-and-windows-8-too/That said, well, we're going to see how unstoppable it is... Last time it took me half an hour to knock all this crap out. It seems to be staying disabled. I have better ways of using my bandwidth than uploading diagnostics to them. If MS forces tracking despite all the settings telling it not to, people will soon invent a way to kill it. Windows isn't Linux, but the Pro version still can be extensively fiddled with, and that's not counting 3rd party hacks. So far, it seems that group policy+registry hack fixed it. If it stops working, I guess I'll see if COMODO can be used to firewall every transmission to MS telemetry servers.
I noticed that most complaints come from the "Home" version of Win 10, in which those things might genuinely be hard to turn off. On Pro and Enterprise, it's a matter of knowing were to look. I suppose MS can afford to piss off individual users with tracking and forced updates, but not companies that buy the OS in bulk.