I have this rare issue with my storage usb 4gb, I used it very frecuenly in Internet caffes, i do regular stuff download music, music, etc, one day i went there and i insert my USB flash drive to the computer and some of the files were not there and my first reaction that was a virus but no virus were found on it, and when i click on properties all the files were there but for some reason i could not access them, i had some movies and some ilegal software ( jajaja like cracks and stuff ) i finaly got tired and delete all but just in case what should i do when this happends ???