Bin can be plagued Vista 64bit newcomers, now I finally know how fast my PC ... Have the Win7 64bit OEM Ultimate ordered version, backed my files, boot disk formatted (wanted the legacy of Vista not lug) and everything went smoothly. The installation itself took about 25 minutes, now I have 5 days all tested extensively and am completely thrilled. Strong buy recommendation! Any program that ran with me on Vista to run on Win7 and also without incident. Copying files between the hard drives running emotionally about 5-8 times faster than before. The constant chatter of the hard drives in the background as with Vista is gone. I do not regret the move and recommend any of the Vista also has to upgrade, which the XP have anyway.