Hi, thank you for reaching out. I’m happy to help.
To upgrade to Windows 11 pro, please try the following:
Disconnect from the internet
Go to Settings > System > Activation. Click "Change product key," enter VK7JG-NPHTM-C97JM-9MPGT-3V66T," and hit activate.
Reconnect to the internet, then log in to your Microsoft account used for the purchase.
Restart your computer and check.