The KMS host can activate multiple Office versions (2016, 2019, 2021, LTSC 2024) simultaneously.
Many older command scripts contain outdated logic that fails to swap retail certificates. Ensure you are using the most up-to-date version of your activation tool. Modern open-source scripts handle the Office C2R retail-to-volume transformation automatically if run with administrative privileges. Step 2: Clear Out Existing Office Licenses
When the error occurs, you will likely see one of the following:
Use code with caution.
Use the Office Deployment Tool (ODT) with an XML file specifying Volume licensing:
: A command-line utility that provides a specific "Convert into Volume License" option (Option [C]) to force the transition. 2. The "Clean and Re-Convert" Method
Designed for enterprises. Managed via KMS or Multiple Activation Keys (MAK). The KMS host can activate multiple Office versions
Are you deploying this across a or a single machine ? Which activation tool or script triggered this error?
To obtain a Volume-licensed Office 2019, you must perform a using Volume-specific media.
If you see active retail keys, remove them using the last 5 characters: cscript ospp.vbs /unpkey:XXXXX Use a Dedicated Scrubber : If the script still fails, use a tool like the Microsoft Support and Recovery Assistant If you see active retail keys
Instead of converting a retail installation, it is best practice to install the volume version directly. Download Office Deployment Tool.
Automated scripts use a dynamic process to clean your computer's current Office licenses and inject the corporate identities needed for Key Management Service (KMS) activation. The process fails primarily due to three core issues: 1. Existing Retail Activation
Or set KMS host: