I have installed Windows 10 on my Mid 2012 Macbook Pro. I already had a separate partition which was a leftover from Ubuntu in it, so I didn't partitioned it using Bootcamp and directly formatted it in NTFS. I then used Bootcamp assistant which automatically detected the NTFS partition. I made a bootable usb and installed Windows 10 using it. It does have latest drivers too. Everything is working in it after installing Bootcamp drivers except the sound. I just get a red cross on the Volume icon in system tray and when I click on it, Windows starts to troubleshoot and the result always points that the hardware change might not have detected and it's been fixed now.
However it never gets fixed. In device manager, I get a yellow warning mark under High Definition audio controller and no other audio device. I have tried installing both Realtek and Cirrus drivers, but they doesn't get installed saying that they are incompatible.
How can I get the audio to work in Windows 10?