Thanks,Kroozer and Andavari. For most of the 33 hours, Piriform was the only thing actively in use. I didn't shut down everything else that was running in the background, nor disable the anti-virus. To do all those things would be a lot, I trust you agree. Also, there's nothing saying they're necessary. I can't transfer files to another drive because I don't have one. Please don't take this personally, but if all that needs to be done to get a timely 1-pass wipe, it isn't worth it. (By the way, can forum be set so that the quesioner is notified when there's been a response?)