Speaking to Apple support they first tried passing it off as a Windows problem, when I pointed out it must be a recognised problem as there is an Apple website where the issue is mentioned - But they could not help me beyond suggesting a reinstall of the Windows partition. As per Apple's support site, I have downloaded Windows Support Software, but when I run it in Windows it hangs with an error message - Error BootCamp Service.exe They work fine when running Mac OS, also in Windows when I plug in a USB headset that works. Yesterday the internal speakers, headphone jack and microphone stopped working.
Bootcamp and Windows 10 - speakers and headphone jack stopped working I have a 2019 iMac on which I run Windows 10 via Bootcamp since buying the iMac.
