Thank you for the Responses......unfortunately I've already purchased and opened the Win 7 Upgrade Disks so I'm stuck with them. Can'r return opened Software, as far as I know. I'll just have to live with the 32 Bit Upgrade, which probably isn't the end of world. It would probably be more important to upgrade to 64 bit if I was a Gamer, which I'm not. It's just so aggravating to try and get the right answer from one's Computer Manufacturer before purchasing an upgrade and then get the WRONG ANSWER!!!!!! MORE THAN ONCE!!!!!!!!!!!!