This post shows how to change what the Fn keys do in Windows 11/10. The Fn or the Function key is a meta-modifier key used to activate secondary functions or special features on certain keys.

If F1, F2, F3, etc, Function (Fn) keys stop working in Windows 11/10 here are some troubleshooting steps that will help you fix the problem on your Dell, HP, Lenovo, Toshiba, etc. computers.