So my issue is that when I plug my headphones into my computer, instead of just hearing my music/sound out of the headphones, I am also able to hear music/sounds out of my laptop speakers as if headphones aren't even plugged in. So, in essence, I'm just doubling the sounds that I hear, because the music/sounds can be heard in the headphones while simultaneously being heard from the laptop speakers. Which rather defeats the purpose of the headphones. I've tried updates, but nothing seems to work. How can I fix this?