[OversouL]

This will help you recover the files that you lost in your USB which is infected by a virus. This will only work if the files are not deleted by the virus, but only hidden. This really helped me after my USB was infected so I was thinking I'd share this to you.

Note: I C+P this guide. I just simply shared and edited this a little for you guys. Source will be given at the end of tutorial.

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Step One:

Plug your USB Pendrive or External HDD or Memory Card which is Affected.
Step Two:

Go to Start -> Run-> Type CMD and Enter
Step Three:

Find the drive letter for the connected USB drive. For Example, I:

In command prompt, type I:

and Hit enter. Command Prompt will show I:/
Step Four:

Then type

Code:

attrib -s -h /s /d *.*

Make sure that you put space between each elements in the code.

and hit enter and wait for few seconds.

Check the Screen Shot of Above Steps:

Spoiler: Screenshot

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Source: Here