Hi Nagarajan K,
you can follow these steps:
- Open the Server Manager on your Windows Server 2019.
- Click on the "Local Server" option on the left-hand side of the window.
- Under the "Properties" section, you will see the "Installed RAM" and "Processor" information.
- Click on the "License: Registered" link next to the "Processor" information.
- This will open the "Activate Windows" window. Click on the "Activate" button.
- Enter the additional core license product key that you have in your hand.
- Follow the on-screen instructions to complete the activation process.
Once the activation process is complete, your Windows Server 2019 will be licensed for the additional 2 cores.
Hope it helps.
Best regards,
Lei