fix the corrupted pen drive or memory card by assigning a correct drive letter:
- Connect your storage media to your computer.
- Right Click on My Computer.
- Click Manage in the drop down menu.
- Click Disk Management in the left side and wait for a few seconds so that Windows can load the Virtual disk service.
- Right Click on your storage media and click Change Drive Letter and Paths.
- Click the drive letter (it will turn blue) and click Change.
- Select the drive letter from the drop-down list. Click Ok.