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Resolving this Error Code 0xc004c020 in Windows Activation

Windows Update Error

Error code 0xc004c020 is a common issue that Windows users may encounter when trying to activate their operating system. This error typically occurs during the activation process and can be frustrating for users seeking to enjoy the full functionality of their Windows operating system.

In this article, we will delve into the reasons behind the error and provide practical solutions to resolve it.

Possible Causes for this Error Code 0xc004c020:

Incorrect Product Key:

One of the most common causes of this error is entering an incorrect or invalid product key during the activation process. It’s crucial to double-check and ensure that the product key you are using is accurate.

Multiple Activation Attempts:

Windows has restrictions on the number of times a product key can be used for activation. If you’ve exceeded the allowed activations, you may encounter error 0xc004c020. This is often the case with volume licensing keys.

Network Issues:

Activation requires a stable internet connection. Network problems, such as a slow or intermittent connection, can lead to activation failures and causes this error.

Easy Solutions to fix this Error Code  0xc004c020:

Verify Product Key:

Confirm that the product key you are entering is correct. Check for typos and ensure that you are using the right characters. If necessary, try re-entering the key.

Contact Microsoft Support:

If the product key is correct but the error persists, reaching out to Microsoft Support can be helpful. They can provide guidance on resolving activation issues and may offer assistance in reactivating your Windows license.

Activate by Phone:

In some cases, activating Windows by phone might be a viable option. Follow the on-screen instructions to initiate phone activation, and a Microsoft support representative will guide you through the process.

Check Activation Limitations:

If you are using a volume licensing key, ensure that you have not exceeded the allowed activations. If you have, you may need to contact Microsoft Support to reset the activation count.

Fix Network Issues:

Ensure that your internet connection is stable. If you suspect network issues, try activating Windows from a different network or troubleshoot your current connection.


Error code 0xc004c020 can be a hurdle in the smooth activation of Windows, but with careful verification of the product key, contacting Microsoft Support when needed, and addressing potential network issues, users can often overcome this activation error.

At last, if you are still not able to resolve this issue. We recommend you to Chat with our experts. I am sure they will help you resolve this issue. If you like to see the procedure for paid support, to clarify, you may ask the Tech Available online.

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