on two seperate hard drives. Installation went very quick and easy. No problems at all. It seems IE 8 has been fixed from what I had before. The compatibility screen doesn't switch screens like it used to...Yea !! All my programs seem to work fine on the 32 bit version. Haven't had time to install everything on the 64 bit version, but most things seem to work. So at this point I'm very happy with Windows 7 !!