Installing Outlook 2021 LTSC

Question

I purchased an Outlook 2021 LTSC license and would like to know how to install it.

I tried installing Office 2021 LTSC by selecting only Outlook in the configuration.xml file. It installs fine, but when I try to activate it, it tells me that the license is for Outlook 2021 LTSC and that it's expecting a license for Office 2021 LTSC.

Is there another way to install only Outlook LTSC or to license it?

Answer 1

Hello @Sebastien DAUBAGNA , 

Thank you for contacting the Microsoft Q&A Forum. I understand you're trying to install Outlook 2021 LTSC with a standalone license and are encountering an activation issue when using the Office Deployment Tool (ODT). 

From my research, what’s happening is that, even though you told the Office Deployment Tool (ODT) to exclude every other app, the XML you used still installs the Office LTSC 2021 suite SKU. Your standalone Outlook-LTSC key can’t activate that SKU, so you see “…expecting a license for Office 2021 LTSC.”    Since you have a standalone Outlook 2021 LTSC license, we need to specify the correct Product ID for the standalone version of Outlook, I will help you to the best of my ability in this case.  

Please follow the steps down below: 

1. Uninstall Existing Attempt (Recommended):  If you currently have Office/Outlook installed from your previous attempt, it's best to uninstall it first to avoid conflicts. Go to "Control Panel" > "Programs and Features" (or "Settings" > "Apps" > "Apps & features"), find the Microsoft Office installation, and uninstall it. 
2. Create or modify your Configuration.xml file:    You'll need to create or edit your configuration.xml file to use the Product ID specifically for Outlook 2021 LTSC (Volume License). Here’s an example configuration for you to install outlook 2021:   

      <Configuration>  
      <Add OfficeClientEdition="64" Channel="PerpetualVL2021"> 
      <Product ID="Outlook2021Volume">  
      <Language ID="en-us" />  
      </Product>  
      </Add>  
      <Display Level="Full" AcceptEULA="TRUE" />  
      <Property Name="AUTOACTIVATE" Value="0" /> 
      </Configuration> 
   

3. Download the Office Deployment Tool (ODT): If you haven't already, download the latest ODT from the Microsoft Download Center: https://www.microsoft.com/en-us/download/details.aspx?id=49117  

Run the self-extracting executable and extract the setup.exe and sample configuration.xml files to a folder on your computer (e.g., C:\ODT). 

1. Download the Installation Files:
   1. Open Command Prompt as Administrator. 
   2. Navigate to the folder where you saved setup.exe and your configuration.xml file using the code: cd C:\ODT  Run the following command to download the installation files: setup.exe /download configuration.xml (This will download the necessary files into an "Office" subfolder within your ODT directory and it's about 3 GBs) 
2. Install Outlook 2021 LTSC: Once the download is complete, run the following command in the same Command Prompt window to install Outlook: setup.exe /configure configuration.xml   
3. Activate Outlook:  After the installation is complete, open Outlook.  You should be prompted to enter your product key. If not, go to File > Account.  Under "Product Information," click on "Change Product Key" (or "Activate Product").  Enter your Outlook 2021 LTSC product key when prompted

This method ensures that the installed product matches your standalone Outlook 2021 LTSC license, and activation should proceed successfully. 

If you continue to experience issues, please reply with the exact content of your configuration.xml file, and we can take a closer look. Let me know how it goes—or if anything is unclear, just ping me back through the comments and we’ll sort it out together. 

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