My dad did it in a day. He got a new system, don't remember which version. I told him to copy the "Pictures", "Music" and "Documents" separately from his old system to their respective folders on the new system. He looked at that and thought that it would be more efficient to just copy the entire user folder over, which he did, accepting all the security prompts. It rendered his system barely operable. I told him he'd messed up his system and to do a full factory restore. He called Dell. They told him to do a full factory restore. Afterward, he sent me a very sheepish mea culpa. Mind you, my father has a PhD in nuclear physics and built a computer for testing purposes back in the 1980s.
