My original comment was tongue in cheek, trying to mirror the OPs "everything's an upside!" post. That said, MS does tend to roll out major security architectu

My original comment was tongue in cheek, trying to mirror the OPs "everything's an upside!" post. That said, MS does tend to roll out major security architecture improvements between versions. Incremental updates are helpful, but new architectural defenses against malware happen with major revisions. As a consequence, "old versions of windows" (though admittedly mostly XP) are one of the worst things about the internet right now. As someone who works in security, MS moving to the forced upgrade model that Chrome pioneered will solve one of my biggest headaches in the long run. I know that's selfish, and the tradeoffs for users may not be worth it, but man, old versions of Windows are the bane of my existence. Anyway, as to specifics, the DEP and ASLR in Windows 7 were the big enhancements, but Windows 8.1 had better sandboxing features that are carried forward, and Windows 10 has improved encryption and authentication. Forcing people away from IE to Edge is huge. I probably can't do this topic justice in a comment, but if you're really interested in more info, lots of info can be found spread across several articles by just googling Windows+10+security.