Activate Windows 11 after Computer Switch

I have recently bought a new Computer where I Installed Windows 11 after i finished building it. When I installed Windows 11 I chose Windows 11 Home(Not knowing i actually had Windows 10 Pro on my old PC). Now when i try activating Windows on my new PC it doesn't work no matter how I go about it. I've logged into my Microsoft account and confirmed that both my new and my old PC:s are connected to the same Microsoft account.

What I am trying to do is make it so my new PC also has the professional version of Windows, only difference that my new PC has Windows 11.

On my old PC it says that Windows was activated using a digital licens connected to my Microsoft-account.

Is there a way for me, or anyone that can help me activate Windows 11 on my new PC and at the same time Switch from Home to Pro?