HI
I found this link which may help you
http://h10025.www1.hp.com/ewfrf/wc/document?cc=us&lc=en&dlc=en&docname=c03523373
Also go to this link
http://www8.hp.com/us/en/drivers.html
Put the product number of the laptop and choose the OS and download the touchpad driver and BIOS
http://h10025.www1.hp.com/ewfrf/wc/document?cc=us&lc=en&dlc=en&docname=c00033108
