When you move a dynamic disk from one computer to another this dynamic disk is flagged in Disk Manager" as a foreign disk. In order to access this foreign disk you must import it first.

To Import The Foreign Disk On Windows XP
• Click Start
• Control Panel
• Administrative Tools
• Computer Management
• Disk Management
• Right click on the Foreign Disk
• Select "Import Foreign Disk"

What If The "Import Foreign Disk" Option Is Not Present?
If you right click on the foreign disk and the "Import Foreign Disk" is not present, this can occur because the dynamic disk was from a Windows XP Pro system and the new system has Windows XP Home installed. Windows XP Home cant read dynamic disks as they do not have a normal partition table.

Convert To Basic Disk
To make the disk accessible to the new system you will require converting it to a basic disk. Though this process will erase the data on the disk.

What to Do
In this is the case you will require to put the disk back into the original system and after that take out all the data or the most valuable data to a different place such as

Writable DVD
• a different hard disk drive present on the old system
• USB thumb drive / memory disk
• tape back
• a different machine on your network
• After that you can convert it to a basic disk in the new system and put the data back on it.