Server Core has many installation benefits, but there are a few situations where the GUI is better and provides more options; for example, when we need to troubleshoot a problem on the server. Even with the handy tools from the previous task, nothing replaces the full server installation.
Windows Server 2012 allows the GUI installation and uninstallation; making our job easier when the GUI is necessary and providing all the benefits of a Server Core installation when you need it. It also allows a third option that enables the graphical management tools.
The three options available on Windows Server 2012 are as follows: