My friend's Windows XP home keeps getting a BSOD as windows starts to load. I found a MS page that states that my problem is from the new MB having a different ide controller and I am told to merge a .reg file with the registry. I can't do this because windows doesn't load. Is there anyway to throw his drive in my PC and merge a .reg file with his registry and not mine. I think regedit automatically merges with my registry and I did not see an option to set which registry to merge with.