Get help for your acer! identify your acer product and we will provide you with downloads, support articles and other online support resources that will help you get the most out of your acer product.. When i install windows 8.1 in aspire e15 (e5-511-p7ux) laptop that time touch pad not working. i was try all types of solution as per your guide ( io driver --> chipset drivers than touchpad driver (all drivers download from acer side ) in windows 7, windows 8 touchpad is working.. Acer aspire e5-511 driver download for windows 8.1 64bit – spec acer aspire e5-511-c1k2 processor :intel