KeyLock is a Security & Privacy::Encryption Tools software developed by Brabonet. After our trial and test, the software was found to be official, secure and free. Here is the official description for KeyLock:
Safe: It's not possible to use your computer after you've locked it with KeyLock. Our exclusive technologies disable task manager, and disrupt the mouse, making it impossible to reach the desktop. After unlocking, everything will be recovered immediately and you can use your computer again.
you can download KeyLock free now.