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How to change drive letter assignments in Windows

(Detailed Instructions also available)

To change an existing drive letter on a drive, or on a USB device when it does not show up after being connected, follow these steps:

  1. Log on as a member of the Administrators group.

  2. Right-click on Computer, then click on Manage.

  3. Click Disk Management in the left pane under Storage.

  4. Right-click the drive, or the USB device that you want to assign a new drive letter to, and then click Change Drive Letter and Paths.

  5. Click Edit/Change.

  6. Click Assign the following drive letter if it is not already selected, from the drop down select the drive letter that you want to use, and then click OK.

  7. Click Yes when you are prompted to confirm the drive letter change.

The drive letter on the drive, or on the USB device that you specified should change and appear appropriately in the Disk Management tool.