Unhide Files in Virus Infected Pendrive Using Command Prompt

I thought that I've lost few files in my pendrive, until I received a warning "FILE ALREADY EXISTS", on trying to move the files (which were found missing ), again into the pendrive. 
Hence, these files can be unhidden in Windows by the following steps :

Step 1:Plug the pendrive into your PC.

Step 2:Start command prompt:

• Winkey+R  or Start-> Run

• Type "cmd " , Hit Enter

Step 3:Type the following:

•  The Drive letter of your pendrive ( eg: H, G, I... )

• The following commnad

        attrib<sp> -s<sp> -h <sp>/s<sp> /d<sp> *.*

• Wait until the prompt appears.

Note:<sp> refers to space the elements in the command.

Example ScreenShot !!