Upgrade windows server entre versões standard e datacenter

#Obter a lista de versões compativeis para upgrade

 Dism /Online /Get-TargetEditions

<edition ID>

...

DISM /online /Set-Edition:<edition ID> /ProductKey:XXXXX-XXXXX-XXXXX-XXXXX-XXXXX /AcceptEula

ver mais em: https://docs.microsoft.com/en-us/previous-versions/windows/it-pro/windows-server-2012-r2-and-2012/jj574204(v=ws.11)

https://docs.microsoft.com/en-us/windows-hardware/manufacture/desktop/dism-windows-edition-servicing-command-line-options