Make sure u try touch pad lock button and Trouble shoot drivers and try to plug in a USB mouse and see if it will pop up. While it's plugged in try to move your touchpad if it doesn't work you can try this
pull ur key pad up and check the cable ribbons. Check the touch pad ribbon and the keyboard ribbon and make sure they are PERFECTLY aligned if it's a little off it will mess up. Make sure u push it all the way in sometimes there's a white line on the ribbon that need to be aligned making sure u push it in where it's needed