Windows 10: F3 And F4 Not Working On Windows 10 Laptop

So, my Function 3 and Function 4 keys aren't working , which are meant to light up the keyboard on the laptop , but for some reason I cannot get them to work.


The lights last worked like 3 weeks ago and I don't think the lights are dead!


Anyone had the same problem? I need help here.




:)

 

Some fn+fkey (f3,f4, etc.) don't work

Hello. Ever since I changed to Windows 10, I lost the ability to use some fn shortcuts. I can no longer use fn+f3, f4, f9 and I also can't use the NVidia key, nor the Steam key. I have an Asus ROG G751jy gaming laptop.

fn+f3 = dim keyboard backlight

fn+f4 = brighten keyboard backlight

fn+f9 = toggle touchpad

[Moved from: Windows / Windows 10 / Devices & drivers]

 

Change what Fn + f3 and Fn + f4 do

At the first time I use my new laptop ( ASUS A455LA, Win. 10), the Fn+f3 and Fn+f4 combination is empty (no command to do). One day, I press Fn+f3 and the computer ask me what kind of command to do, I choose to open Google Chrome.
The problem is, I accidentally choose the same thing to do with fn+f4 (also to open Google Chrome) and I want to change it like Fn+f4 = open Windows Media Player. Is it possible to do? How?

Thank you.

 

Function Keys not working for Windows 10 Laptop

Some of the function keys are not working for Windows 10 HP Laptop.

These keys are not working: f2,f3,f4,f5,,f6,f7,f8,f9,f10,f11

f1 and f12 keys are working.