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March 2024
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2012 server

When you install Windows Server 2012, you can choose between Server Core Installation and
Server with a GUI. The “Server with a GUI” option is the Windows Server 2012 equivalent of
the Full installation option available in Windows Server 2008 R2. The “Server Core Installation”
option reduces the space required on disk, the potential attack surface, and especially the
servicing requirements, so we recommend that you choose the Server Core installation unless
you have a particular need for the additional user interface elements and graphical management
tools that are included in the “Server with a GUI” option. For this reason, the Server Core
installation is now the default. Because you can freely switch between these options at any time
later, one approach might be to initially install the Server with a GUI option, use the graphical
tools to configure the server, and then later switch to the Server Core Installation option.
Reference: Windows Server Installation Options

 

 

Core Installation feature

Minimal Attack surface
Small foot print
Highly Reliable
Easily managed
Winrs / winrm , powershell,servermanager,rsat
Features on demand

Reduce foot print by removing payload on used items

minimal server interface

 

SwitchING Between installation modes
Switch From core Full to Core

Install Full Use Gui to configure

Switch configure full to core

 

Power shell command
Powershell

 

Import-Module ServerManager

Install-WindowsFeature Server-Gui-Mgmt-Infra, Server-Gui-Shell -Restart
uninstall-windowsFeature server-gui-shell

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