Connecting to an RDP is usually one of the easiest things in this presentation.
The software required to connect is usually pre-installed on your computer.
To begin, search for "Remote Desktop Connection" in your Start menu. The first result must be the required program.
After opening the program, a window should appear.
The slot next to "Computer" is where you must enter the Host Address of the server. Of course, this will be provided to you after you buy an RDP.
Obviously, these credentials will be provided once you acquire an RDP.
After entering the credentials correctly, you probably should have been connected to the server!
Note that once your server period has expired, the credentials will be disabled and you will not be able to access the server again.