I`ve been running Vista and Win 7 (dodgy edition). Vista IMO was a nightmare on this laptop, its a Dell ( pile of poo TBH ) but quite frequently the raid HD setup would just trash itself. However using Win 7 its been great, however i`ve decided to be brave and ditch windows altogethor. My WOW playing days are numbered ( too much time online ) and thus windows is not a must and if needed I`ll run it in virtual box on the linux host. However in all honesty Win 7 is a cracking release, vista IMO is the same as windows ME, useless. 
