USB Disk Security provides 100% protection against any malicious programs trying to attack via USB storage (USB disk?USB drive?USB stick?flash drive?flash disk?flash memory?flash card?secure digital card?removable storage?portable storage?ipod?media player). USB Disk Security is great antivirus software to permanently protect your offline computer, without the need for signature updates. Trial version for Windows 95 and above. Removal of threats is limited in trial version.