After I upgraded my laptop from Windows 8 to Windows 8.1. The keyboard and touchpad did work. So I upgraded the Bios and installed new keyboard and mouse drivers, and others from HP in the laptop. After all, the keyboard and touch pad still don't work.
I was able to install all these drivers since I had USB mouse kind of working, but USB keyboard did not work. So I had to use built-in soft keyboard to install all these drivers.
Now I am out of options for fixing my laptop. Can some HP person help me since we are all your customers?
Regards,
HP customer