I know that there have been a couple of excellent threads about installing Win7 into an empty snapshot. But this will not work with an Upgrade version of Win7 would it? I want to install Win7 Home Premium (no hidden 100mb partition with Home Premium, correct?, or do all Win7 versions have it) onto my 2-year-old pc that has WinXP. I do not want to remove FirstDefense or any of my important XP Snapshots. How would I install Win7 Upgrade version, would I have to install it directly on top of one of my XP Snapshots so that the Win7 can see my XP installation since it is an upgrade? If this is the method, which sounds rather easy, do I need to do anything else special because of the FirstDefense software? I will be choosing the 32-bit Win7. Thank you, Acadia P.S. I can think of a couple more questions because of the unique situation of having FD on this system, but I will ask them later; one thing at a time.