Introduction - If you have any usage issues, please Google them yourself
1 to provide a password lock screen with password prompt. 2 simple fashion style with the soft keyboard input. 3 interface has loaded effects and off effects. 4 perfect shield ALT+F4, ALT+Tab, ESC, CTRL+ESC, F1, left WIN key ... with a variety of off key, as well as the most effective shielding Task Manager. 5 lock screen interface- with an empty password error- text blinking prompt.