EN.Wikipedia "Windows Server 2016" - “Microsoft announced a new installation option, Nano Server, a minimal footprint installation option of Windows Server. It excludes the graphical user interface, WoW64 (support for 32-bit software) and Windows Installer. It does not support console logon, neither locally nor via Remote Desktop Connection. All management is performed remotely via Windows Management Instrumentation (WMI) and PowerShell. Microsoft engineer Jeffrey Snover claims that Nano Server had 93 percent lower VHD size, 92 percent fewer critical security advisories, and 80 percent fewer reboots than Windows Server”.