windows 11 activation not working I have a valid product key

Hi mario medina,

Thank you for reaching out to Microsoft Q&A forum. . I completely understand how frustrating it can be when activation doesn’t go through, especially when you have a valid product key. Let’s work together to get this sorted out.

*Important note: For security reasons, please do not share your product key directly in this forum.

To help us assist you better, could you also let me know:

• Where did you get the product key? (e.g., purchased from Microsoft Store, OEM, or another source)
• What exact error code or message are you seeing? If you see any error code, please share it with me. It helps us quickly identify the issue and get to the right fix.

In the meantime, here are a few things you can try that often resolve the issue:

Step 1: Run the Activation Troubleshooter

• Go to Settings > System > Activation.
• Click Troubleshoot. This tool automatically checks for common issues like hardware changes or edition mismatches and applies fixes where possible.

Step 2: Check Internet and Time settings

• Make sure your device is connected to a stable internet connection.
• Verify that your date and time settings are correct (including time zone). Incorrect settings can block activation.

Step 3: If you recently changed hardware

• If you replaced major components (like the motherboard), sign in with the same Microsoft account linked to your license.
• In the troubleshooter, select "Reactivate after hardware change". This helps restore your digital license.

Just reply with the details, and if you need any further help, let me know. I’m here to support you.

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If your Windows 11 activation is not working despite having a valid product key, there are a few common issues to consider:

1. Invalid Product Key: Ensure that you have entered the product key correctly. Typos or incorrect characters can lead to activation failures. If you are copying and pasting the key, check that the Clipboard hasn't altered any characters.
2. Blocked Product Key: Sometimes, Microsoft may block certain product keys. If you receive an error indicating that the product key is blocked, you will need to obtain a new Multiple Activation Key (MAK) or Key Management Service (KMS) key.
3. Non-Genuine Grace Period: If the activation tools determine that your system isn't authentic, you may encounter issues. In this case, you should contact Microsoft Licensing Activation Centers for assistance.
4. Correct Version: Ensure that the product key corresponds to the version of Windows 11 you are trying to activate. Using a key for a different edition can also cause activation problems.
5. Activation State: You can check the activation state of your Windows by using the command slmgr /dli in the command prompt, which will provide details about the licensing status.

If these steps do not resolve your issue, consider reaching out to Microsoft support for further assistance.

References:

• Troubleshoot Windows activation error codes
• Work with product keys and activation