Citrix XenDesktop 7.15 CU1 Server VDA Upgrade Fails (Resolved!)

While attempting to upgrade a Windows Server 2016 VDA from XenDesktop 7.15 to 7.15 Cumulative Update 1, you may receive the error “Installation of the ICA for Remote Desktop Services failed with error code 1603.”.

1

Digging through the log indicates the issue is during the installation of the IcaTS_x64.msi component.

2

Running that installer directly indicates a possible permissions issue with the registry key “HKLM\SOFTWARE\WOW6432Node\Citrix\Euem\LoggedEvent”.  The error displayed is “Could no open key: HKEY_LOCAL_MACHINE32\SOFTWARE\Citrix\EUEM\LoggedEvents. Verify that you have sufficient access to that key, or contact your support personnel.”.

3

The registry key does not have permissions/owners set, which is the problem.  You will need to take ownership of the key, I set it to the local Administrators, and then inherit permissions to the key while replacing on any object below it.

4

After setting the permissions on the registry key, run through the installation again to successfully upgrade the VDA.

5

 

Thanks for reading!
Shane!

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