7.1 surround does not lower my pc's sound

Hi, I recently bought a razer kraken x lite, downloaded the 7.1 surround software, did everything right, put what sound it should use and there in the windows option too.
But for a while now I can't turn down the sound on my computer anymore, I can leave my computer on mute that shows there in windows and the sound keeps coming out. If you have any solution... and one more thing I downloaded all my pc's sound drivers updated straight from the manufacturer.

https://drive.google.com/drive/folders/1uGTLgl8JMO4wlESWrTiuqbh8UfDzqkkS?usp=sharing

above is the specs of my pc