NUMLOCK Specifies whether the NUM LOCK key is set to ON or OFF when your computer starts. You can use this command only in your CONFIG.SYS file. Syntax NUMLOCK=[ON|OFF] Parameters ON|OFF If set to ON, turns on the NUM LOCK key when MS-DOS displays the startup menu. If set to OFF, turns NUM LOCK off. Related Commands The NUMLOCK command is one of six special CONFIG.SYS commands for defining startup menus and multiple configurations. The other commands are: The command, which defines the color of the menu's text and screen background. The command, which defines an item on the menu. The command, which specifies the default menu item. The command, which defines a submenu. The command, which includes the contents of one configuration block in another. This command cannot be included in a menu block. For an overview of the procedure for defining multiple configurations, see the topic