What is Microsoft keyboard Filter Service?
You can use Keyboard Filter to suppress undesirable key presses or key combinations. Normally, a customer can use certain Microsoft Windows key combinations like Ctrl+Alt+Delete or Ctrl+Shift+Tab to alter the operation of a device by locking the screen or using Task Manager to close a running application.
Is it good to turn on Filter Keys?
Summary. FilterKeys is an Accessibility option that you can use to control the keyboard repeat rate and ignore repeated keys.