This application lets you block your PC when you remove a USB device. In other words, Active Lock converts any USB device into a Windows access key. Simple and secure. All you have to do is connect your USB device to the PC, click on "Enable" and then restart the PC.
You can also configure your USB memory to work as the access key for multiple PCs. Security problems on your PC? Unauthorized accesses? Is your PC shared by various users and you are worried about your privacy? Forget about it: the solution to your problems is called Active Lock.