Hi, I have run into dead ends so far in trying to minimize the impact of borking my system. I have two identical hard drives with two partitions on each. What I want is an "almost hot swappable" system. By that I mean if the XP on C:\ bombs I could boot the XP on D:\ and resume almost immediately without a lot of getting everything back up to date. I have a program (File Back) that can synchronize the two partitions. Is it possible to install another copy of XP on D:\ and have it selectable during startup as part of "Dual Boot." Do I need to purchase a second copy of XP to comply with the EULA? Thank You & Best Regards Emmett