Importing foreign dynamic disk group with the same name as the last one

In Windows 2003, when importing a dynamic disk group, if it has the same name as the last one, it will fail.

That’s because the last name used is saved in the registry and conflicts with the new group.

The solution is:

1. Open regedit
2. HK_LocalMachine/System/CurrentControlSet/Services/dmio/Boot Info
3. Delete the Primary disk group key
4. Reboot

Now you should be able to import the foreign group.

This bug should have been resolved in W2K8.