Sometime in the near future I'm going to be swapping motherboards, and losing my windows installation is out of the question. I've looked up several methods and sysprep seems to be the best/most reliable option. However I'm confused on a couple of things after reading MS's page on sysprep found here . It talks about processor compatibility between what was there originally and the new proc. However they don't go into enough detail for me to figure out if my setup will be ok. Basically I'm going from a DFI motherboard with a pentium 4 w/HT (::shudders: to a board yet to be determined and a AMD athlon 64. Does anyone know if this will work? If not I'll just have to do an in place reinstall...but I'd rather not go that route.