Hi, today my computer keyboard decided to stop working. Yesterday I was using the laptop by doing a lot of typing so Icam ensure the problem happened today. All lights (wifi key and *in startup* caps lock key) work fine but all key functionality is gone. Happened between laptop restart and not in use. I tried to system restore 9 days back and to reinstall the keyboard myself, none of which worked. Any answer is appreciated.
However if an external one is working fine, I would think it is the physical keyboard. Have you tried an external mouse? If it works, then again, the damage could have effected the touch pad as well.