My HP laptop comes with presets for the function keys like help, brightness controls, LAN, etc. The keys don't work as they should in Excel, etc. Is there a way to reprogram these keys? Big irritation and there are a few shortcuts that can only be used with one of these keys -- that I know of.

If there's a fix, I hope it's not geek-centric since I am not. But I will try to follow instructions!

Thanks, Clare