Step1. Right click the volume you want to rename drive letter and select “Change Drive Letter and Path…”

Step2. Choose “Change” to change drive letter in the pop up window.

Step3. Select new drive letter for object drive.

Some other situations when you have to change drive letter:
1. Connect one PC to another one.
2. Upgrade the drive and the new drive letter can’t be changed to the previously used drive.
3. The drive has been hidden so that we can change drive letter to show it.
4. Reform system and the drive letters changed.