JUST so everyone knows, Windows 8 SUCKS, badly. GW2 will not work on it, Lineage 2 will not work on it, I havent tryed WoW yet so dont know. If you like to play games and that kind of thing, I'd say stick with windows 7. So far it has crashed twice, froze once and nothing will accually work as well as windows 7. I'd wait on windows 8 even if you like it cause it's still got ALOT of problems with it. The only good thing about windows 8 is that it supports USB 3 which is going to be nice in the near future and it does support more ram cap at 64 bit, but windows 7 supports up to 192GB of ram with 64bit.
You're full of ***.
Guild Wars 2 works just fine on Windows 8, not that the game is worth playing anyway