on my toshiba laptop (satellite pro s300m-s2403), the keyboard does not work at all but the touchpad forks fine. A Microsoft Natural Keyboard plugs in USB and works, but I'd rather have the onboard keyboard most of the time. How to fix? Any driver fix needed? An uninstall----re-install? Or do I have a hardware problem? What can I do to diagnose the problem I have?
if all keys not working Loose connection problem. reinsert keyboard connector to mobo can fix this. if some keys not working dust problem so clean keyboard.
if extra options not working means driver issue.