Hello Woooky,
to bring together your Windows Server 2022 (16 core) OEM software license with additional core licenses, you will need to perform the following steps:
- Open the Windows Server 2022 licensing portal and sign in with your Microsoft account.
- Click on the "Activate" button and enter your product key for the OEM software license.
- Once the OEM license is activated, click on the "Add Licenses" button and enter the product key for the additional core licenses.
- Follow the prompts to complete the activation process for the additional core licenses.
After completing these steps, your Windows Server 2022 license with additional core licenses will be activated and ready to use. If you encounter any issues during the activation process, please contact Support Center Contact Info. | Microsoft Learn for further assistance.
Hope it helps.
Kind regards,
Lei