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Given Key Was Not Present in the Dictionary — ADFS

Symptom​

The following error appears in your ADFS Health Log after upgrading the Windows OS on your ADFS server:

Failed to retrieve the state of windows feature.
Reason: The given key was not present in the dictionary.

Diagnosing the issue​

  1. Run the following command in PowerShell on your Netwrix Auditor server to query a target ADFS server, replacing %TARGET_NAME% with the actual target server name:
Get-WindowsFeature -ComputerName %TARGET_NAME%
  1. The command returns the following error:
Get-WindowsFeature The given key was not present in the dictionary.
CategoryInfo: NotSpecified: (:) [Get-WindowsFeature], KeyNotFoundException

The error indicates a Windows-related issue.

Causes​

  • The cache HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\ServerManager\ServicingStorage\ServerComponentCache registry key was corrupted.
  • A faulty registry item is present in the XML file that is associated with the Group Policy registry settings.

Solutions​

  • Recreate the ServerComponentCache registry key:

    1. Locate the HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\ServerManager\ServicingStorage\ServerComponentCache registry key in Registry Editor on your ADFS server.
    2. Right-click the key and rename it to ServerComponentCache.old.
    3. Run the PowerShell command from your Netwrix Auditor server again or refresh the view in Server Manager. This will recreate the key and rebuild the server feature information.

  • Re-create the Group Policy and registry settings. Learn more in Group Policy error: "The given Key was not present in the dictionary" ⸱ Microsoft 𓂸."