Error on my PC with licence Windows

Hello Victor, maybe you can try these steps:

Open a Command Prompt as an Administrator (right-click the Start button and select "Command Prompt (Admin)" or "Windows Terminal (Admin)").

To clear the current, incorrect KMS key, type the following command and press Enter: slmgr /upk This will uninstall the product key.

Now, we need to install your valid retail key. Use the following command, replacing XXXXX-XXXXX-XXXXX-XXXXX-XXXXX with the actual retail product key you verified on the website: slmgr /ipk XXXXX-XXXXX-XXXXX-XXXXX-XXXXX

Finally, force Windows to attempt activation with this new key by entering: slmgr /ato

This process should re-activate Windows using your retail license. If you receive an error during the /ato step, it may indicate that the specific key has reached its activation limit. In that case, using the Activation troubleshooter in Settings > Update & Security > Activation can often resolve it by guiding you through re-linking your digital license to your Microsoft account.

I hope this process resolves the activation conflict for you. If this solution works, please feel free to mark this response as "Accepted" 🙂

I already trie that but I got this error message in an OK popup : Error: 0xC004E016 On a computer running Microsoft Windows non-core edition, run 'slui.exe 0x2a 0xC004E016' to display the error text.

Hello,

Open an elevated cmd prompt and run licensingdiag.exe.

Post a link to the generated cab file.

Licensingdiag runs a set of commands to collect diagnostics on the licnsing status which includes event log entries, output from slmgr, etc.

This can help us identify some activation/licensing issues.

Darrell

We had an old unused license lying around, I entered it and it worked. I don't have an explanation for this issue, sorry.

Thank you for your feedback.

We had an old unused license lying around, I entered it and it worked. I don't have an explanation for this issue, sorry.

Thank you for your feedback.