USB Disk Security provides 100% protection against threats via USB, but most other products are unable even to guarantee 90% protection. USB Disk Security is the best antivirus software to permanently protect offline computer without the need for signature updates,
but the antivirus software should update signature database regularly, and can not effectively protect the computer disconnected. This solution is light and easy to use is 100% compatible with all software and does not slow down your computer at all. You pay USB Disk Security once and get all this, however, other antivirus products should be paid for updates every year.