The F key on my laptop keyboard won't work. What do I do?
It is definitely a little bit sticky under the keys. Remove the key and clean under it or call and technician or support guy and they will come to your house and do it in like five minutes for not a lot of money.
It could be a hardware problem and therefore you need to take it to be fixed. You could also try the Function lock button. It may need to be pressed to get the F button to work.