I may have to take my iMac in for repair . I've never had to relinquish my computer to nameless, faceless technicians, so I've never considered this question before, and was wondering what folks usually do. When you take you're computer to the Genius Bar, what do you do with the data on on the hard drive? Do you wipe your disk before you go, and restore later from disk image? Or do you just trash particular files and folders? I'm not entirely sure my Mac requires repair. Do you delete stuff before you go, or on the spot in the store? I don't have a free external drive big enough to image the whole HD, but I do back up with Time Machine. I don't think I have anything extremely sensitive on my machine, but then I don't know that I want someone rooting through my underwear drawer, as it were.