For Hidden File :
If you can't recover the files in your USB pen drive , just follow these few steps -
> Open notepad
> Then write attrib-h -r -s *.*
> Save it in your pen drive with the name UnHide.bat
> Then open your browser and write the drive letter and press enter.
(For example - if your pen drive location is F drive then type F: in the address bar and press enter)
> Then you will see all the files inside your pen drive .
For Deleted and Virus affected File :
You can also use pen drive recovery software to recover your deleted files. And that is Data doctor Recovery software whuch is well known by DDR- pen drive recovery
To recover your deleted files follow these few steps -
>after download paste the code just like this
Name : DD80PLCP24D5T67VIK5-4VYI
Serial : DD80PLCP24D5T67VIK5-4VYI
Company: DD80PLCP24D5T67VIK5-4VYI
Email : DD80PLCP24D5T67VIK5-4VYI
Enjoy ...
Thanks .