So I've had Windows 7 Home Premium, an OEM copy, installed on my PC for years now. But now I want Windows 7 Ultimate. Good hustle, I know. From what I understand after searching up some posts and seeing similar situations, my OEM key prevents me ifrom just popping in an Ultimate OEM SLP key into the Anytime Upgrade and going from there. What I'll need to do is use the loader to modify the type of license I have installed, then start the Anytime Upgrade process. Is this correct? I think I get what to do, but I want to make completely sure that I do this correctly.