It's easy to change the name which is broadcasted by AirServer Windows 10 Desktop Edition.

Instructions on changing the AirPlay & Google Cast broadcast name:

1. Open up AirServer Windows 10 Desktop Edition.
2. Press the three lines in the bottom left corner and choose the General tab.
3. Change the Friendly name in the General tab.

Instructions on changing the Miracast broadcast name:

The name broadcasted by Miracast is determined by the computer name.

1. Open up AirServer Windows 10 Desktop Edition.
2. Select "Miracast" and then press the "Windows Settings"link at the bottom of the window.
3. Press "Rename your PC" at the bottom of the newly opened window.