Thanks for your reply NooNoo.

I downloaded DriverMax shortly afterwords and updated most of my drivers. That didn't work. I then found another option in this software, ''Identify unknown hardware''

It gave me 2 driver options, one audio & one video.

I updated the audio one and that was it, the sound returned. I haven't updated or fixed the video one, I still have a yellow mark in my video ''other devices'' section.