I always played fn on the laptop until one day it said 'driver error, how is that?

For me it was always possible to play fn on the laptop until one day it said '"driver error" how is that?

Try to update all drivers

Are the drivers up to date?

Do not know how

Don't know don't know my way

Look at that.

Then no more fn plays.

Go to the manufacturer's website for your laptop. Download and install the drivers there. In most cases, the problem is gone.