Why doesn't sound work in Windows on a MacBook Pro?

Question

Audio

Good afternoon everyone. There was a following problem.
The MacBook Pro (Late 2011) itself needed Windows.
First I installed Windows 10, everything got up well except for the sound, "no audio output device is installed"
I thought that the problem is that my macbook does not support 10. Installed 8-ku the same problem.
I just installed Parallels and ran Windows through it, the sound worked. But when I switch through the clamped alt at boot, there is no sound. I've already tried everything possible.

Answer 1

In general, for my MacBook Pro (Late 2011), Windows 7 got up perfectly using the selection method.
For some reason, the sound diver does not get up on Windows 8, Windows 10, apparently there may not be support.
I have tried all the methods that are on the Internet - nothing helped. So, download boldly 7-ku and use it.