@2AM
Greetings!
Welcome to the HP Support Community. This is a great place to get support, find answers and tips to your technical queries. I have reviewed your post and I understand, you are trying to change the functionality of the function key.
Appreciate you trying the steps. Don’t worry, I’m here to help!
This is by design and it cannot be modified in the BIOS. Some notebook computers use a feature called Action Key mode that allows you to perform the secondary action without needing to press the Fn key first. But your desktop PC does not. The Fn key is a special key controlled by hardware. It cannot be remapped using the software.
Hope this helps!
Let me know if you have any other questions.
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Have a great day ahead 🙂
Asmita
I am an HP Employee