Why my product key is not working for Windows Server 2019?

Question

When I am entering the license key, its giving me an error saying that it is not valid. Please see the screenshot attached.

Answer 1

Hello  Danial Hadizadeh,

Thank you for posting in Microsoft Community forum.

There are several situations where you might encounter an error with your Windows Server 2019 product key. Here are some common scenarios:

1. Incorrect Product Key: Ensure that the product key you're entering is correct and valid. Double-check for any typos or errors.
2. Expired or Invalid Key: If the product key has expired or is invalid, you will receive an error. Verify the key's validity with the vendor.
3. Evaluation Version: If your server is running an evaluation version, you need to convert it to a retail version before using a retail product key. Use the KMS client key to convert the evaluation version first.
4. License Type: Ensure that the product key matches the edition of Windows Server you are using (e.g., Standard, Datacenter). Using a key for a different edition will result in an error.
5. Activation Server Issues: Sometimes, issues with the Microsoft activation servers can cause errors. Try activating at a different time or check the Microsoft support site for any known issues.
6. System Changes: Significant changes to the system, such as hardware upgrades or major software updates, can sometimes cause activation issues.
7. Corrupted System Files: Corrupted system files can also lead to activation errors. Running the System File Checker (SFC) tool can help identify and fix corrupted files.

If you have any question or concern, please feel free to let us know.

Best Regards,

Haijian Shan