I have Norton SystemWorks Pro and am also using WINXP Home. Would I be better off using the Norton or the Win XP to defrag my HDD? Also, I have heard that everything should be turned off to do this. How would I make sure everything is off - or should I boot into Safe Mode (which I am not sure how to do)? I've had trouble in the past defragging on Win 98SE - I lost things and don't want it to happen again. Please advise. Thank you.