No sound or mic in Windows 10 Bootcamp on an iMac

I am running Windows 10 Bootcamp on an iMac retina. I can't get any sound to play through the built in speaker. I can get sound to play if I hook up another screen with speakers, but not the imac itself.

Also, I can't use the mic, and even if I hook up my bluetooth earhpones (Bose Quietcomfort) the sound works, but the mic doesn't.

Also my apple mouse doesn't work.

I have tried updating the drivers in device manager.

Has anyone else been able to get the built in speakers and mic to work?