... utlizamos DISM Get-CurrentEdition

C:\Users\Administrator>dism /online /Get-CurrentEdition
Deployment Image Servicing and Management tool
Version: 10.0.20348.681
Image Version: 10.0.20348.1487
Current edition is:
Current Edition : ServerStandardEval
The operation completed successfully.
C:\Users\Administrator>

... utlizamos DISM Get-TargetEditions

C:\Users\Administrator>DISM /online /Get-TargetEditions
Deployment Image Servicing and Management tool
Version: 10.0.20348.681
Image Version: 10.0.20348.1487
Editions that can be upgraded to:
Target Edition : ServerStandard
Target Edition : ServerDatacenter
The operation completed successfully.
C:\Users\Administrator>

... utlizamos DISM Set-Edition

C:\Users\Administrator>DISM /online /set-edition:ServerStandard /productkey:WC2BQ-8NRM3-FDDYY-2BFGV-KHKQY /accepteula

Microsoft invites everyone to get acquainted with the features of the server platform using trial versions of Windows Server 2019 or Windows Server 2016 (StandardEvaluation or DatacenterEvaluation). By filling out…

Explains how to upgrade or convert Windows Server to newer versions, different editions, or switch between licensing options, such as evaluation, retail, and volume licensed.