The letters assigned to your hard drives, optical drives, and USB drives in Windows are not fixed. Use the Disk Management utility in Windows to change drive letters. These steps apply to Windows XP and newer versions of Windows.
How to Change Drive Letter in Windows 10
Follow these steps to change the driver letters in any version of Windows.
Open Disk Management, the utility in Windows that lets you manage drive letters, among other things.
In the list at the top or on the map at the bottom, find the station whose station letter you want to change.