Hi, trying and failing to re enable the touchpad on Sony Vaio. Have read advice but doesn't work for me
Have you tried this yet? How to re-enable Sony Vaio Touchpad
There are also some other tips in that same thread if that one doesn't help.
if all the options in Hardware, device manager have failed re-enabling the track pad.. Then try re-installing the drivers again either using the DriverPack Sol or any other package available to you...