In this video guide we, will see the steps to convert Windows Server 2019 Evaluation Edition to Full Retail Version.
Windows Server 2019 is available as 180-day trial for testing purposes.
Since the trial is an Evaluation edition, the installed version cannot be licensed as a paid edition but needs to be converted first.
Note: For this demo I am using Public KMS Key. This will only work if you have KMS activation server in your organization.
Link to download Windows Server 2019 Evaluation Edition for 180 Days.