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. Yesterday the internal speakers, headphone jack and microphone stopped working. They work fine when running Mac OS, also in Windows when I plug in a USB headset that works.
I am running 11.5.1, Bootcamp 6.1. 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
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 - https://support.apple.com/en-gb/HT204923 But they could not help me beyond suggesting a reinstall of the Windows partition. Has anyone else had this issue with BootCamp 6.1 and resolved it? In the downloaded drivers with Windows Support Software there does not seem to be any audio drivers I can manually force an update with. I do notice that Windows stopped recognising the internal speaker as Cirrus and now is "High Definition Audio Device" I had an old version of BootCamp (5.xx) which had Cirrus drivers but Windows won't let me use these to update it's audio drives.
Windows, Windows 10