How to remove a drive letter To remove an existing drive letter on a drive, on a partition, or on a volume, follow these steps: 1. Log on as Administrator or as a member of the Administrators group. 2. Click Start, click Control Panel, and then click Performance and Maintenance. 3. Click Administrative Tools, double-click Computer Management, and then click Disk Management in the left pane. 4. Right-click the drive, the partition, the logical drive, or the volume that you want to assign a drive letter to, and then click Change Drive Letter and Paths. 5. Click Remove. 6. Click Yes when you are prompted to confirm the removal. The drive letter is removed from the drive, from the partition, or from the volume that you specified.