All keys

[jack wc]

My function keys are not responding on Vaio pcgk23 lap top. old, I know, but it is what I can afford. I have checked the device manager, all the drives seem OK.

 

[Saga Lout]

Hello and welcome to Tom's Hardware Forums.

If you have a key marked Fn to the left of your spacebar, make sure it can move freely and isn't stuck down. That could cause Function keys to fail.