LOCK & UNLOCK
According to Gizmodo.com, you can lock and unlock your computer with a simple USB.
The trick is to use an app like PREDATOR, which you can download for free.
The app turns your flash drive into an access control device – a physical key for your computer.
When locking your PC, unplug the USB stick, or plug it back in and your computer will be unlocked.
Visit: https://www.predator-usb. com//predator/en/index.php.