Volume and brightness adjustment problem

GAURAV9822

Honorable
Sep 2, 2012
49
0
10,530
Hello friends,
I have a laptop and when i press "Fn+volume button",volume increses slightly and suddenly doesnt increase or decrease and after sometime it automatically responds.Same happens with brightness also.
So,is there problem in windows 8 or in my laptop?
If it is windows 8 problem then should updating solve it?