What to do if the physical optical drive is not available after removing the virtual optical drive

After the virtual optical drive is installed in the system, there are times when the physical optical drive cannot be used after the virtual optical drive is removed, and when this occurs, the following methods can be resolved:

1), run Registry Editor Regedit.exe or Regedt32.exe:

2), in the left pane of Registry Editor, navigate to the Hkey-local-machineenumscsi branch in turn.

3. In the right pane of the branch, you can find the optical drive information that is installed in the system, find the string key value entry Userdrive-letterassignment, and its key value represents the available drive letter that the system assigns to the optical drive, for example, Hz indicates that the drive can be used from H through Z.

4, remove all subkeys under the SCSI subkey, thereby removing the physical optical drive and virtual drive information.

5, restart the computer, the system automatically found the physical optical drive, and again in the above subkey added physical optical drive information, the problem can be solved