You could also go into bios and set "power on password" --enter simple password-like one letter for a password....like your first initial. Then like bullcube mentioned going into power management.."what you would like the button to do"...select standby. This way you never have to reach ALL the way down to that button-ever..period! (boy...I must be getting lazy) And if your two year old touches then...of course you would just tap any key on your keyboard and the screen/system would pop right back up.