Recently I installed VirtualBox 6.1 on my MacBook Air and installed Windows 10 on it (<https://developer.microsoft.com/en-us/microsoft-edge/tools/vms/>), but somehow the sound on my guest Win10 is not working. I managed to dig for some info and found out that I need to install (<https://www.realtek.com/en/component/zoo/category/pc-audio-codecs-ac-97-audio-codecs-software>) but it does not work. Could anybody help me with this one?

EDIT: I get the error when I hover over the sound icon: "no audio output device is installed"