RecursiveFault
Banned
Even if they come with 8.1 you can get 7 on a CD, or you can upgrade to 10 later, if you trust it to be good.I'm not familiar at all with the Mac OS, but either way I'll have to be learning a new OS since most new laptops have Windows 8.1 anyway.
Biggest loss you may have with a Mac is your LOCAL GAME STORE won't work. Since you want it for streaming video though, that'd be fine.
It's as simpler as putting the DVD in and clicking next a few times.