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Upgrading VDA fails - MCS driver not available

Stefan Wendrich1709160263




we want to update our VDA 1903 to 1909. For the Upgrade we packaged the Standalone Desktop VDA installer into a SCCM Application and run the package with the commandline :


"VDAWorkstationSetup_1909.exe" /quiet /components VDA /controllers "wi216ctxddc1.dom.de wi216ctxddc2.dom.de" /optimize /masterimage /noreboot /install_mcsio_driver /enable_remote_assistance /enable_real_time_transport /logpath c:\Windows\Logs\

Thats working fine. The setup returns 3 and the installation is ok.

I rebooted the vm and then, shutdown. Take a snapshot and do a "Update Machines" in Citrix Studio through MCS.


After some time. MCS is failing with the following error message "the writebach cache driver was not found"



The only solution i found was to uninstall the vda manually and install it again.


What happend here? Why was the mcs driver not installed ?

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