How to Change Harddrive Letter (When it is not available)

In Disk Mangement you can change the drive letter for your hard disks and media drives. But if a letter has been given to another drive and that drive is no longer connected you cannot re-use it! This guide shows you how.

Change Drive Letter

This guide is only to be used when disk management in the control panel doesn’t list the letter you need

Open the start menu and type regedit in to the search box, then open regedit

Navigate to the following key:

HKEY_LOCAL_MACHINE\SYSTEM\MountedDevices

For Change DosDevices\D: to DosDevices\E:.
where D is the old and E is the new drive letter. (You may need to delete the old drive)

DO NOT CHANGE your system drive (usually C:\) This will break your computer. Also BACKUP the registry before any changes