

The Fn lock key usually appears as a secondary function on the Esc key you have to press the Fn key and Esc key together to lock the function and toggle keys.

Look for an Fn Lock shortcut key or an F Mode shortcut key on your keyboard. This also tends to lock many toggle keys like Num Lock, Shift key, and Caps Lock. One of the most fundamental reasons why the Function keys are not working in Windows 10 is because you may have accidentally pressed the Fn lock key. The methods listed below can be used to fix function keys not working issues. There are ample amounts of solutions available to resolve the problem. If the Fn key not working issue occurs, there’s nothing to worry about. Reset the PC 9 Solutions To Fix Function Keys Not Working In Windows 10

Make Changes in the BIOS Configuration Settings
