Laptop keys not responding. Only touch pad and mouse works

Have you by any chance spilled any liquid on the keyboard?
You might have stuck keys, try moving your flat hand over the keys with a little pressure or tap every key five times, not to hard yet not to soft either.
If all else fails have your keyboard replaced. Keyboard are not expensive at all. (Have it checked by your local tech obviously before ordering a keyboard.)

Use a usb keyboard for the time being...


Hope this helps
Grant Hills
South Africa