Hi, @w raspe
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The error message in the screenshot indicates that the /Add-ProvisioningPackage command is not recognized. Make sure that you are using the correct syntax for the command, as shown in the DISM Provisioning Package (.ppkg) Command-Line Options article. Also, ensure that the DISM version you are using supports provisioning packages.
You can use the /Get-Features command to check if the DISM version supports provisioning packages. If the output includes "PPKGFeature", then provisioning packages are supported.
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