Windows Server 2012 R2 Essentials
Windows Server 2012 R2 Standard (Server Core Installation)
Windows Server 2012 R2 Standard (Server with a GUI)
Windows Server 2012 R2 Datacenter (Server Core Installation)
Windows Server 2012 R2 Datacenter (Server with a GUI)
Windows Server 2012 R2 Foundation
Windows Storage Server 2012 R2 Standard
Windows Storage Server 2012 R2 Workgroup[