In Windows Server 2012, it provides the following three modes, and you can easily switch between GUI to core, and core to GUI.
- Nomal GUI mode – The standard OS with full GUI features.
- Graphical mode – Management tools and Infrastructure. This mode provides only few essential GUI tools. For example, management tools like Server manger, Disk management console, etc.
- Core mode – No GUI in this mode. You’ll get only command prompt with powershell.
From Core to full GUI
Install-windowsfeature Server-Gui-Mgmt-Infra, Server-Gui-Shell -Restart
From Core to graphic management tools and infrastructure
Install-Windowsfeature Server-Gui-Mgmt-Infra -Restart
And back again,
Uninstall-Windowsfeature Server-Gui-Mgmt-Infra, Server-Gui-Shell -Restart