First, right click on the Computer icon on the desktop and choose Manage.
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Now click on Disk Management in the left hand pane.
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Now you will see a list of all the volumes on the Windows 7 computer and a break-down of the partitions by disk. For any removable media you may have attached like USB flash drives, you will see the word “Removable” under the name of the disk.
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To change the drive letter, simply right-click on the partition and choose Change Drive Letter and Paths.
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Then click on the Change button and then choose a new letter from the drop down menu.
That’s pretty much it! Like I said earlier, it’s pretty straight-forward. If you have any problems changing a drive letter on your Windows 7 PC, post a comment here and I will try to help. Enjoy!