WARNING: After you convert a basic disk to a dynamic disk, local access to the dynamic disk is limited to Windows 2000 and Windows XP Professional. Additionally, after you convert a basic disk to a dynamic disk, the dynamic volumes cannot be changed back to partitions. You must first delete all dynamic volumes on the disk and then convert the dynamic disk back to a basic disk. If you want to keep your data, you must first back up the data or move it to another volume.
Be careful before you do anything. Think if you convert it from dynamic to basic, under certain circumstances, you might lose the data... It happened to me on one of the test boxes before....