A friend of mine wanted to transfer his data from a USB drive to my PC but the USB had no visible files. It was showing that it had few GBs of data in it but all it contained were few shortcuts. Antivirus program detected few viruses from that USB which were deleted. Furthermore I scanned and cleaned the USB drive by using some other antivirus tools (AdwCleaner, JRT, Spybot S&D, TDSSKiller and more). The USB was still not showing any data. It however displayed a hidden folder with no name. The folder had no name and it was showing zero size. Virus created a folder without name and transferred all the USB data in that folder. I had cleaned the USB. Now all I had to do is to retrieve that hidden data from USB drive. Here is how to do it.