Help release my laptop keyboard

[fixitcomputers.pd]

All the keys on my Acer aspire laptop keyboard is not working and I don't know what l have done. Do I have to do something to activate it. Please help me to make my keyboard come on. Thanks

 

[rgd1101]

MERGED QUESTION
Question from fixitcomputers.pd : "All my keys are not working, please help"

All my keys are not not working, please help. Thanks