Kid Key Lock is a freeware which allows you to disable keyboard and/or mouse functions. You can choose to disable all keys, or choose only specific system commands. You can also disable different mouse keys, as well as the usage of all mouse & keyboard inputs. Its primary purpose is to let toddlers or kids play around your computer without pressing unwanted programs and commands. Of course, this can also be useful for your pets who love to sit on your keyboard or who like to play with the mouse when you aren't there.