(Solved) Investigating issue with Windows 10 Enterprise (multi-session), version 2004

Hi Pieter, 

I noticed this a few days ago when deploying an image based on 20H1, the issue is that the SXS component will not automatically be installed during deployment.

So I did some more testing today, my conclusion so far.

Deploying a WVD host based on 20H1 will fail to install the Remote Desktop Services SxS Network Stack component. Initial the host will be Unavailable in the hostpool. After some minutes the host will get the status Upgrading. Initial only two components will be installed (Remote Desktop Agent Boot Loader and the Remote Desktop Services Infrastructure Agent). After upgrading the Geneva Agent will be installed, but still the status of the machine is Unavailable.

If you check your remoting connection with qwinsta you will not see the SXS component, this component is needed for the reseverse connectivity. In the folder C:\DeployAgent you will find a folder RDInfraSxsStackInstall with a single .MSI file, you can install this manually. You will find version 1811. After installing the machine will once again go to the upgrading status. This time a newer version of the SXS stack will be installed but the status will eventually be Upgrade failed.  The result is two versions of the SXS agent are installed. the 1811 and 2003 version. I think this has something to do with the fact that the installer is unable to remove the agent.

You can manually remove the older version and reboot the host (Watch out, the uninstall will stop the Remote Desktop services).After the reboot the host should be available and you can now login.

Do you have any ETA for a fix? If you need some testers let me know!