In Windows 2012,usually Remote Desktop is not easily visible. To launch the Remote Desktop window, there are two methods: Command Line and Graphical User Interface.If someone is still using windows 2008 server for those we have already discuss about to enable RDP on Windows server 2008.
How to enable RDP via Command Line:
1. Move your mouse to bottom right of the screen and you would see a bar, Charm Bar.
2. Click on the Search button, the one with magnifying glass.
3. Enter CMD in the Apps search text box
4. Click on CMD , it will launch the command prompt:
5. In command prompt window, type SystemPropertiesRemote and hit Enter
6. The above command would launch the System Properties windows.
7. Select the appropriate option under Remote Desktop and click OK.
How to enable RDP using Graphical Interface:
1. Move your mouse to bottom right of the screen and you would see a bar, Charm Bar.
2. Click on the Settings button,
3. Click on Server Info under Desktop
4. The Server Info launches the Control Panel System page. Click Advance System Settings on the right. This would launch the same System Properties page.
5. Select the appropriate option under Remote Desktop and click OK.
That’s all to do, If you want to enable multiple remote connections on windows server 2012 you can check here: how to enable multiple remote connections on windows server 2012.