Turtle Beach PX21 isn't recognized as an Audio Device?

[Herooftme]

I built a new PC about a month ago, and have been using speakers as a primary Audio source. However, I bought a Turtle Beach PX21 headset, and all I can do is watch Netflix/Other media ETC. I can't use Skype or Steam calls because it won't register the headset as a recording device. Why is this ?

I was using this as a reference: https://www.techspot.com/community/topics/turtle-beach-px21-dpx21-computer-problem.162408

,but they don't go over my problem.

Thanks !