Bootcamp 6.1.7866 [upd] Download

For many users, yes. This specific build includes a revised AppleHDA.sys driver that resolves the audio loss after closing the lid. If the problem persists, disable “Allow the computer to turn off this device” for the audio controller in Windows Power Management.

A community-uploaded ZIP of Boot Camp 6.1.7866 is available on the Internet Archive. bootcamp 6.1.7866 download

https://swcdn.apple.com/content/downloads/.../BootCampESD.pkg For many users, yes