Posted 02 October 2010 - 07:41 AM
Try running the chkdsk /r command on the partition you cannot access.
Corruption is just another word for damaged...generally, either files, file structures, or the file system can become damaged...the chkdsk /r can overcome some (not all) of these situations.
Generally...when XP cannot read the partition structure, I assume that it's damaged. In such instances, XP will often view the partition as nonexistent or nonreadable.
At that point in time, IMO, it's best to try data-recovery software before turning any more attention to trying to effect a repair of any sort.