Hello, Amine.
We are glad to have you here at Microsoft Community.
We would like to thank you for the information you kindly provided over direct communication.
Regarding your inquiry about linking your account to the desired Email, the final process you will need to complete is a Migration, which is to successfully associate your MCID with your personal Email.
For this please complete the steps listed below:
1. Start a Microsoft Edge InPrivate browsing session (pressing the key combination Ctrl + Shift + N once the browser is open).
2. Copy and paste this link into the private window’s address bar. https://mcp.microsoft.com/mcp/home/migrate
3. Access with a Microsoft account that has not been used in the MS Learn Platform, different to your email address (in your case, the desired Email address, if you do not have one, we invite you to create one Here)

4. It is possible you encounter an error message. If that happens, please click on MCP Home, as shown in the image bellow.

5. After clicking on MCP Home, you will be redirected to Your Dashboard.

6. While being on Your Dashboard page, please delete the URL and paste this one: https://mcp.microsoft.com/mcp/home/migrate

7. After pasting the URL and clicking on enter, you will see this website, please fill in the fields MC ID and Access code using the credentials provided over Private Message.

In case you encounter any inconvenience while following these steps, please let us know; we will be more than glad to check what is happening and to assist you in the best way.
We are looking forward to your response. If no response is received we will proceed to close and lock the case and private message within two business days.
Have an amazing day!
Estefania Roa
Microsoft Certified Professional Services Center
Support Monday to Friday.
