I have a similar problem. I have a new 500 gig hard drive. About half of it is partitioned as a dynamic disk. I am running Win XP Home, which does not support dynamic disks. Is there any way to convert a dynamic partition back to a basic? None of the partitioniing programs (Partition Magic, for instance) can see the dynamic half of the hard drive. In "My Computer," my Win XP sees only 260 gigs of a 500 gig drive.