This is only being discussed because brown envelopes are in transit,
Just force MS to deliver a special "European edition" of Windows that doesn't collect anything by default, and if it does, that says precisely what happens (throw in cool runtime graphics for added "online cyberappeal" as needed, the young ones will be happy to click on the button "activate cool graphics as your data transits over the net").
MS can hardly say no, after all it defends the position that European operations are not linked to US operations and that Uncle Sam cannot just demand data held on Irish servers.
Will it happen. Well, you know.... it's complicated....
Biting the hand that feeds IT
