That files was corrupted somehow, or your USB drive is infected with malware. Try running a malware scan on the USB drive and then open Computer and right click the drive. Choose Explore, then press ALT + T, and go to View > Options > Folder Options > show hidden system files or folders. If I am correct, the file should be hidden with 100 % working condition. Alternatively, install Recuva and scan the drive for original file.