Someone using the laptop probably spilled something on it. You will probably see more keys stop working as time goes by and those keys short out as well. Only 1 fix, replace the keyboard. Otherwise you'll have to keep using the external keyboard.
Someone using the laptop probably spilled something on it. You will probably see more keys stop working as time goes by and those keys short out as well. Only 1 fix, replace the keyboard. Otherwise you'll have to keep using the external keyboard.