I would assume no because I have Home Premium 64bit and on my disc it specifically says that. The box doesn't but the disc does. Also, 64bit for gaming isn't all it's cracked up to be. No game needs 4gig let alone 3gig. 2gig for gaming is all you need for now. Maybe in the near future you will need some more but as of right now there is no reason to upgrade to the 64bit strictly for gaming purposes. If you were to do 3D modeling or hardcore Photoshopping, then I can see it being practical. I do both of those, hopefully for a career one day, so that's why 64bit and 4gig of ram seemed practical for me. However I do game but I don't see much of a different in FPS compared to people with 32bit.