Openning Commant prompt

1. Click Start then type run

2. type cmd then press enter

or

Click Start - Accessories - Command Prompt

Step by step procedure in the command prompt

1. First put the drive where your usb is inserted.

ex: your drive is inserted to drive E then type E: then press enter

2. Second type attrib *.* -r -a -s -h /s /d

then press enter. please wait until the end of the process.

after you finish the process you can now open your USB and retrieve your corrupted files.

In some cases after you open your USB you will see a suspicious folder where you can see your currupted files.