En-windows-server-2019-x64-dvd-4cb967d8 ✓

: You can retrieve an existing activation key from a live server by running slmgr /dlv in an administrative Command Prompt. Trial Extension

: You can download a trial version of this OS through the Microsoft Evaluation Center, which offers a 180-day free period for testing. en-windows-server-2019-x64-dvd-4cb967d8

If you meant something else by that string (e.g., you found it in logs or a download manager), clarify, and I can tailor the guide more specifically. : You can retrieve an existing activation key

Get-FileHash -Path "C:\Downloads\en-windows-server-2019-x64-dvd.iso" -Algorithm SHA1 en-windows-server-2019-x64-dvd-4cb967d8

4cb967d8b5a3d17be1d7bfc1d30bbba369bcbb2b