Just happened to clone my hard-drive unto a 80 gig secondary one....along with a 30 gig partition that unfortunately I overlooked. Consequently, when I try to install the XP OS afterwards.....it only sees the 30 gig partition...and NOT the original 80 gig hard-drive volume. I attempted to resolve the issue by using Acronis Drive Cleanser. I used the option to DELETE the 30 gig partition...but it still showed up afterwards as: unallocated. Any suggestions ??