Windows Server 2012 GUI management

Windows server 2012 introduces the ability to switch from a Core to a FULL or a Partial GUI installation and viceversa.
Here are Powershell commands:
 
To switch from Server Core to partial GUI mode:
Install-WindowsFeature Server-Gui-Mgmt-Infra -Restart

To switch from Server Core to full GUI mode:
Install-WindowsFeature Server-Gui-Mgmt-Infra Server-Gui-Shell -Restart

To switch from Server Core to full GUI mode with the desktop experience installed:
Install-WindowsFeature Server-Gui-Mgmt-Infra Server-Gui-Shell Desktop-Experience -Restart

To switch from Full installation to Server Core:
Uninstall-WindowsFeature Server-Gui-Mgmt-Infra -Restart

To switch from Full installation to partial GUI mode:
Uninstall-WindowsFeature  Server-Gui-Shell  -Restart

To identify your level of GUI use:
Get-WindowsFeature *gui*