Deleting stuff in your prefetch. Would you say it's healthy or unhealthy? Some, have said that it does damage to the stability to your OS. The rest say it fixes certain problems and make Windows XP run faster.
Okay, not too sure about the 'faster' part, but I do know that there have been numerous times where I had to do it to fix a certain problem. Stuff like Windows switching into to 'Ghey Mode' (an alternative to Safe Mode) and not wanting to boot up all it's processes correctly or some program just wants to hang in your process list and not do anything and other stuff like that. Anyway, do tell your experiences with the mysterious 'Prefetch'.