title: VirtualBox - no sound on Guest Win10
body: <p>Recently I installed VirtualBox 6.1 on my MacBook Air and installed Windows 10 on it (<a href="https://developer.microsoft.com/en-us/microsoft-edge/tools/vms/" rel="noreferrer">https://developer.microsoft.com/en-us/microsoft-edge/tools/vms/</a>), 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 (<a href="https://www.realtek.com/en/component/zoo/category/pc-audio-codecs-ac-97-audio-codecs-software" rel="noreferrer">https://www.realtek.com/en/component/zoo/category/pc-audio-codecs-ac-97-audio-codecs-software</a>) but it does not work. Could anybody help me with this one?</p>
  
  <p>EDIT: I get the error when I hover over the sound icon: "no audio output device is installed"</p>