How can I show hidden data on a USB drive?

12 Oct 2010
12 Oct 2010 | |

There is a strange malware/virus at the PCs at my university library, which cause the data on a USB drive to vanish apparently. Whenever I plug a USB in those PCs and then open it at my home, even after scanning and removing viruses with updated NOD32 in my PC, all pre-existing data in the USB is invisible.

When I check the space occupied by data, it is still as much as it was before, which means the data is still there. Note that I know the option to show hidden files and folders, but this data is still invisible and I am very frustrated because this happens every time.