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Product Key Issues

How to Fix Office 2024 ProPlus LTSC Activation and Product Key Errors

Maira MehtabMaira Mehtab Sep 22, 2026 869 views

Question details

The user needs to activate Office 2024 ProPlus LTSC but encounters an issue where Office continuously requests activation, and the setup website returns an error after installation.

Product
Microsoft Office 2024 ProPlus LTSC
Device & OS
not provided
Scenario
Activating a volume-licensed version of Office 2024 ProPlus LTSC after installation.
Observed behavior
Office setup completes successfully, but the software continuously prompts for activation, and the activation website displays an error.
Before you start

Ensure you have your 25-character volume license product key ready and verify whether your organization uses Key Management Service (KMS) or Multiple Activation Key (MAK) deployment.

Solution 1Recommended

Verify Volume License Configuration and Activate Office LTSC

Use the official Microsoft deployment tools to ensure your product key and XML configuration match the LTSC volume-license edition.

Office LTSC 2024 is a volume-licensed product, meaning it requires specific deployment methods rather than standard retail activation. You cannot activate it through consumer portals.

1
Check official documentation

Review the official Microsoft deployment and activation documentation for Office LTSC 2024 to understand the specific volume licensing requirements.

2
Verify XML configuration

Open your Office Deployment Tool XML configuration file and ensure it correctly specifies the Office LTSC 2024 volume-license edition. If using a MAK key, verify the key is accurately entered in the PIDKEY attribute.

3
Contact volume licensing support

If activation continues to fail or you encounter persistent errors, contact your software license provider or Microsoft volume licensing support for enterprise assistance.

Volume Licensing Restriction: Standard retail product keys will not work with Office LTSC versions. Make sure you are using a valid KMS or MAK key provided by your organization's IT department.
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Frequently Asked Questions

Why does my Office LTSC 2024 product key show an error on the setup website?

Office LTSC 2024 is a volume-licensed product for enterprise use. It cannot be activated through the standard consumer setup website (setup.office.com). It must be deployed and activated using the Office Deployment Tool and organizational volume license keys.

What is the difference between MAK and KMS activation for Office LTSC?

KMS (Key Management Service) activates Office against a server hosted within your organization's internal network, while MAK (Multiple Activation Key) activates Office directly against Microsoft's online activation servers.

How do I check if my Office LTSC installation is successfully activated?

Open any Office application such as Word, click on the 'File' menu, select 'Account' at the bottom left, and look under the 'Product Information' section. It will display 'Product Activated' if your volume license was applied correctly.