Didn't see this addressed yet....

My wife's Acer laptop came with Vista Home installed, and we were resigned to that when I couldn't find some XP drivers for it. When 7 came out and the first Beta version worked on my workshop mule, I decided to put the next Beta release (7100 Ultimate) on the laptop as an upgrade to keep my wife's files, photos, etc. intact. I got the product key for it from M$ download site.

We bought the 7 Home Premium at the mfr's reduced-price offer and just got it. I am debating whether to back everything up, format the drive and install the 64-bit version, or continue with the 32-bit version....but, if I go that route, does anyone know if the RC Home Premium will install over-the-top on the Beta Ultimate?

I think it might, while disabling the Ultimate's exclusive features when I use the Premium's product key, but the wild card is how much the RC was changed from Beta 7100. Thoughts?