I use Windows 8 Pro, updated to 8.1, 2 weeks after it was released. So far no problems with Max, Photoshop and all other programs that I have installed. Civ 5 and Medieval Total War 2 and Empire Total War works properly. I have win7 on dual boot, but I prefere to use win8. About start button - on win8.1 it was "reborn",…