You can easily unhide all files and folders from any drive including your USB drives using a simple DOS command.
Go to Start – > Run
Write cmd and press Enter
Now jump to your drive by typing your drive letter followed by colon ( : ) for example E:
Now type command
attrib *. -s -h /s /d
and Press Enter
Wait for a few seconds…!!!! Thats it….We have successfully unhidden our files and folders.