Hi, a friend has a Dell Dimension 4550 (P4-2Ghz, 60Gb HDD, 784mb RAM- added 512mb and a NEC DVD+/-R, circa 2002 I think?) and needs to do a clean install. He has the CD that came with it. We looked all over google and the Dell site and can't seem to find out how to do a clean install. We pressed F12 and tried to boot from the CD-ROM and thought it was going to work, but it said that we were trying to install XP on a partition that already had XP on it. I saw no option for full/clean restore. Any ideas?