Windows Server 2019 Essentials has the same licensing and technical Characteristics as its predecessor, Windows Server 2016 Essentials. If configured as a Domain Controller, Windows Server 2019 Essentials must be the only Domain Controller, must run all Flexible Single Master Operations (FSMO) roles, and cannot have two-way trusts with other Active Directory domains.
Windows Server 2019 Essentials includes the new hardware support and features and improvements like Windows Server 2019 Standard, including Storage Migration Services, System Insights, and many more.
Windows Server 2019 Essentials will have the same characteristics as the 2016 version that small businesses look for like:
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Fast and fun
Transaction took no time at all and the information for downloading and creating the installation media was clear.