WELCOME to Free Self Help Quick Facts No Nonsense FREE Computer Answers from people just like you, in plain English Search Site NUMLOCK Type: Internal (6.0 and later) NUMLOCK=on|off Purpose: Used in the CONFIG.SYS file to specify the state of the NumLock key. Discussion NUMLOCK=on causes the NumLock key to be ON (the number keys on the keypad will be active) upon system start-up. NUMLOCK=off causes the cursor keys on the keypad to be active. For more information on the NUMLOCK command, refer to Chapter 6, Tips for Advanced Users.