I still use Win7, and usually deactivate analytics. I heard Win10 store fails big time - have you heard the story of the new "Call of Duty" game cannot be played in multiplayer together with non-Win10Store users - mind you the majority uses Steam. It's a sad trend. In general analytics are useful, but the should be opt-in. And usually a crash reporting would be enough, right? But they are all abusing it by sending too much private data, that's not okay, at all.