To work around this issue, we need to modify registry.
If you use Registry Editor incorrectly, you may cause
serious problems that may require you to reinstall your
operating system. Microsoft cannot guarantee that you can
solve problems that result from using Registry Editor
incorrectly.

If your system/boot drive is still a basic disk, follow
these steps to correct this
condition:

1. Start Registry Editor (Regedt32.exe).

2. Click the following registry key:

HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Servic  
es\dmio\Boot Info

3. Under the Boot Info key, delete the "Primary Disk
Group" key.(you need to delete the CORRECT key for your DISK)

4. Quit Registry Editor, and then reboot the computer.

5. After the reboot, try to import the foreign disks
again.

Please try the suggestion above and let me know the
results.