How To Permanently Lock the "Fn" Key Down So It Is Active On My Laptop Keyboard? [duplicate]

Solution 1:

This is done in the bios on that specific model as explained here: Disable The Fn + Function Key Combination on Certain Models

On most HP and Compaq notebook computers, it is necessary to press and hold the function key (fn) while pressing one of the f1 through f12 keys to activate the default functions; such as, increasing or decreasing the brightness of the display, the sound volume, sleep, keyboard lock, etc. On the HP Envy notebooks and other notebooks with advanced BIOS options, the function keys can be configured so that it is not necessary to press and hold the fn key.

Solution 2:

At Dell models it is also in BIOS settings. At Advanced tab you can switch between Multimedia keys and Function keys.