I had used a loader for Vista for a while until i was able to get it, but with all the crap issues I have had I am dying to get 7. Ran the RC for a long itme with no issues and want to get full 7 now. I have a copy of the RTM 7600 Ultimate x64, but have failed already once on one test PC with the 7loader by Hazar. Would not work, at all. Is there any way to know if activation will work before I completely wipe everything out, or is this a wait and see deal? All my PC's are custom built, so there is no OEM info in them, but they do all use ASUS MB's.