"A free tool that works to reveal files which, due to a virus, remain hidden."
As you may well have already worked out, USB Show is a light, free tool that works to reveal files which, due to a virus or personal use, remain hidden in a USB device or external drive.
Working with USB Show is simple: just click on the one central button which will then allow you to select the drive you want to use it on. Once you select a drive, it starts to scan the disc until it detects the invisible files (if there are any).
The best thing is to use USB Show with a good antivirus, so that those files found are worth keeping or deleting. You may also run the risk of some of these found files being malicious. Thus, although it is able to use any removable storage device when operating. However, just to stay on the safe side, it's better to make a backup before using this program because it may also recover some malicious files as well.