Windows assign drive letters (C: D :,…) in order to access the files or folders on the drive.

To change a letter assigned to a partition

• Select a partition which drive letter needed to change, and click the Advanced -> Drive Letter option in shortcut menu to invoke the related dialog.
  
  
• Specify the new drive letter to assign to the partition by clicking drop down list. The partition letter will be deleted if you selected the new letter is None.
  
  
• By clicking OK this will add a pending operation, and the new drive letter will be represented in the main window.

Note
Directly changing a partition letter might affect some shortcuts or applications are unavailable.