I have a dell Dimension E520, the original OS was vista home premium, I upgraded to vista business, is it possible to go back to vista home premium using my original OS install disk? Any help would be appreciated.
Yes, you can go back to the original Home Premium version by doing a clean reinstall with it back to factory default. You will just need to use the original product key number that you used with it before as well. It should be the same one on the sticker on the back of your computer.