How to Turn an Internal Trackpad for a MacBook Back On

If your business provides MacBooks to its employees, you may occasionally receive a complaint from a user whose trackpad has been turned off. This happens when another user configures the MacBook to use an alternative pointing system such as Mouse Keys. Turn the internal trackpad back on by disabling Mouse Keys and removing all external pointing devices. After doing this, you can prevent the MacBook from disabling the trackpad by adjusting settings in the System Preferences menu.

Enable the Trackpad

  1. 1.

    Disconnect the external mouse or other pointing device connected to the MacBook. If no pointing device is connected, continue to the next step.

  2. 2.

    Tap the "Option" key on the MacBook five times to disable Mouse Keys. If you are still unable to use the trackpad, the keyboard shortcut to enable and disable Mouse Keys is not active. Continue to the next step.

  3. 3.

    Use the numeric keypad to move the mouse pointer and tap the "5" key to select items. Click the Apple logo at the top of the screen and select "System Preferences." Click the "Universal Access" icon. Select the tab labeled "Mouse & Trackpad." Clear the check from the box labeled "Mouse Keys." If the box is already empty, another user at your business is logged in to the computer and has enabled Mouse Keys. Place a check in the "Mouse Keys" box and then remove the check. You should now have control of the trackpad.

Keep the Trackpad Active

  1. 1.

    Click the Apple logo at the top of the screen and select "System Preferences."

  2. 2.

    Click the "Universal Access" icon.

  3. 3.

    Select the "Mouse & Trackpad" tab.

  4. 4.

    Click the "Trackpad Options" button at the bottom of the window.

  5. 5.

    Clear the check marks from boxes beginning with "Ignore Built-in Trackpad" at the bottom of the window to have the MacBook no longer disable the trackpad when an external pointing device is connected or when Mouse Keys is enabled.