Install Wim: How to Add Packages to Windows image Using the DISM Tool

Deployment Image Servicing and Management (DISM.exe) is a command-line tool that helps to update offline Windows Images. There are two ways to install or remove packages offline with DISM. You can either apply an unattended answer file to the offline image, or you can add or remove the package directly from the command prompt using DISM or PowerShell. Here are some possible errors you can encounter while resolving this issue Error 0xc1570103: The license file was not found in the specified path, and how to fix error 0xc1510114: The wim file needs to be remounted.

How to Add Packages to Windows image

To ensure we can add packages to the Windows image, we must install the latest version of the Windows Assessment and Deployment Kit (Windows ADK), which contains all of the required tools, including DISM. Thus, below are the steps to add packages to an install.wim file (Windows image).
1: Ensure you mount the image. See this article on how to mount an image.
2: After mounting the images, you can remove packages you don’t require by your organization. See this link on how to remove packages from the Windows image.

Now that we have successfully cleaned out wim file, we can then proceed to add the packages. View the installed packages before proceeding. This guide will teach you how to add packages to an install.wim image.

Using DISM: Query the Windows image for pre-installed apps with the following command, which makes sense.
dism /Image:G:\MountZ /Get-Package

Add your desired packages: With the command above, we can review the package we need and then add them with the command below. Here is how to add LXPs to Windows image using DISM and PowerShell.

dism /Image:G:\Path-to-the-mounted-wim-file\<MountedZ(mountedDirectory)>  /Add-Package  /PackagePath:G:\path-to-the-package\the-cabinet(cab)-file-to-be-added

After successfully adding the package to the WIM file, you should get a message as shown below

Deployment Image Servicing and Management tool
Version: xxxxxxxxxxxxxxx
Image Version: xxxxxxxxxxxxxxx

Processing 1 of 1 - Adding package Microsoft-Windows-TabletPCMath-Package~31bf3856ad364e35~amd64~~.cab [==========================100.0%==========================] The operation completed successfully.

After successfully adding the packages, save (commit) the changes to the WIM file as demonstrated below. This will unmount and save the newest state. For more on these commands, see the Microsoft documentation.

dism /unmount-wim /mountdir:G:\Path-to-the-mount-file\MountZ /commit

I hope you found this blog post helpful. If you have any questions, please let me know in the comment session.