How to disable the touchpad in Windows 7 and earlier Using a mouse and keyboard
Or, press Windows key+ I to open Settings and use the Tab, arrow keys, and Enter to choose Devices, then Touchpad. Press the Windows key, type touchpad, and press Enter.See: How to navigate Windows using a keyboard. Once the touchpad is disabled, you need an external mouse to navigate in Windows, or you can use your keyboard to navigate in Windows.
