Ok I dunno what 8/8.1 was like as well I used it briefly, but 10 allows you to log in with your XBOX account and play Microsoft games with achievements, I also have the Professional edition of Windows 10 because I was a 7 Ultimate customer, so I am unsure if the games are limited by what edition you have.
See when i'm too tired or not on point for Counter Strike... and can sit back and play stuff like Solitaire and other games and achieve pointless achievements which I find pretty cool TBH.