On some laptops there is a button in the center of the keyboard (between G, H, and B keys). This button or nub can be used in place of a mouse or touchpad. If you accidentally hit it while typing, it may be beneficial for you to turn it off if you do not wish to use it. The instructions may not be exactly the same on all laptops, but this tutorial will point you in the right direction. In this example we are using a Dell laptop running Windows 7.