I was running Vista Home Premium and all was fine. I had been eyeing Ultimate as an upgrade choice for a while and a friend of mine had purchased Ultimate Upgrade for himself and decided he didn't want it.
Instead of him returning it unopened to the store I decided to upgrade myself. I bought it from him and installed it, all went fine and I am running Ultimate now.
What I should of noticed before I decided to upgrade was that there were large differences between Home Premium and Ultimate that I would be taking advantage of.
Here is my question. I have not activated Ultimate yet and have 26 more days to decided before I enter the new product key. Since I am finally realizing that I really don't need Ultimate and my friend is willing to refund my money, can I go back to my Home Premium? If so, can someone direct me on how to do so? If not, I guess I will just have to activate Ultimate.