I got a call from a customer last week, that they was unable to update there boot image in MDT after upgrading Windows ADK from 1803 to 1809 – error is “Unable to open the specified WIM file.” It is not the first time i get this question – so now it is time to write a short blog post on how to fix it.

The first question is – have you also installed ” Windows PE add-on for the ADK” ??

From Windows ADK 1809 Microsoft has created the ADK into two installers – the ADK and the ADK WinPE add-on – download the WinPE Add-on here and install it on the same box as the ADK.

Now you are able to update your boot image again.

Happy deployment !

Here is the details of the error :

=== Making sure the deployment share has the latest x86 tools === == Processing LiteTouchPE (x86) boot image ===

Building requested boot image profile.

System.Management.Automation.CmdletInvocationException: Unable to open the specified WIM file. —> System.Exception: Unable to open the specified WIM file. —> System.ComponentModel.Win32Exception: The system cannot find the path specified — End of inner exception stack trace — at Microsoft.BDD.Core.BDDWimFile..ctor(String wimPath, Boolean forUpdate) at Microsoft.BDD.PSSnapIn.UpdateDeploymentPoint.UpdateBootImage(String template, String platform, String dpPath, Boolean createISO, String isoName) at Microsoft.BDD.PSSnapIn.UpdateDeploymentPoint.ProcessRecord() at System.Management.Automation.CommandProcessor.ProcessRecord() — End of inner exception stack trace — at System.Management.Automation.Runspaces.PipelineBase.Invoke(IEnumerable input) at Microsoft.BDD.Wizards.UpdateProgress.WizardProcessing()

at Microsoft.BDD.Wizards.WizardProgress.InitiateWizardProcessing()

Read more:

Download and install the Windows ADK