Well I have been running win7 64 for about a month now and it has been nothing but problems. Drivers that dont work, mouse problems. atl-tab that will not work, games that are jerky, files that will not delete and just crash the system. And a lot more that make the Win 7 64 journey a mess. Vista 64 worked much better and this is a new system made just for win 7 64. Win 7 x64 SUCKS: