LittleGuard provides 98% protection from little fingers that like to play with your key board and mouse.
Control access with littleGuard. With littleGuard activated your mouse is de-active and also 98% of your key board keys will not work.
It does not provide complete protecton however. ctrl ,Alt, Del will end the program.
Windows "start" key will still function.
So..any protection is better than none.