audio driver windows 10 64bit macbook pro 2015

good morning

I installed Windows 10 through bootcamp 64bit.

I solved many problems missing drivers after installation.

I have not solved one problem:

Missing audio drivers for audio speakers and integrated microphone.

audio only exists for optical output. LED red light always on.

if I enter minijack headphone audio is ok.

can someone help me ?

thank you

kapakmac