If this doesn't raise red flags for you, then I don't know what to say. For me, it's looking like Win 7 is as far as I go.
"Speaking to PC World, Microsoft Corporate Vice President Joe Belfiore explained that Windows 10 is constantly tracking how it operates and how you are using it and sending that information back to Microsoft by default. More importantly he also confirmed that, despite offering some options to turn elements of tracking off, core data collection simply cannot be stopped:"
This is the part that ticks me off:
Still, whether or not you agree with Belfiore’s standpoint that this doesn’t invade user privacy, it does seem strange that it has taken Microsoft so long to come clean and admit core Windows 10 background data collection processes cannot be stopped. Instead it gave the impression that turning off all user accessible spying options in Windows 10 settings would provide owners with full privacy – that’s tantamount to spying.
http://www.forbes.com/sites/gordonkelly/2015/11/02/microsoft-confirms-unstoppable-windows-10-tracking/?utm_campaign=yahootix&partner=yahootix