Hi,
3 things to check for the settings of your touchpad. First is in Device Manager open it then expand Mice and other pointing device then right click on the device that drops down and select Enable. Next is by pressing the "fn + F7" together at the same time, that actually enable or disables your touchpad. Lastly, on the actually touchpad itself there are buttons that you can press and the one on the left can also enable or disable the touchpad.