One of the easiest ways to ssh into the RoboRIO would be to download
PuTTY. This SSH client works on Windows, as well as other operating systems. Make sure you are connected to the RoboRIO network, and then input the robot hostname (RoboRIO-[your team number without leading zeroes]-FRC.local). For example, your hostname would be RoboRIO-5975-FRC.local.
On another note, have you renamed the Robot class? Another reason why the driver station may be providing the error of "No Robot Code" could be that you renamed the main Robot class without updating the build.properties file.