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

What if the physical optical drive is not available after removing the virtual optical drive? The details are as follows:

If you have installed a virtual optical drive in your system and removed it from a computer that sometimes fails to use the physical optical drive, this can be resolved by organizing the following:

1, run Registry Editor regedit or Regedt32.exe;

2. In the left pane of Registry Editor, locate 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 to remove the physical optical drive and virtual drive information.

5, the final reboot of the computer, the system will automatically find the physical optical drive, and the above mentioned method will be added under the subkey of the physical optical drive information, this time the problem can be solved