Getting Started with U-Center for u-blox
Nate 
Install Drivers
For this tutorial we'll assume you have the SparkFun GPS-RTK but u-center can be used with any u-blox based product. Start by attaching a micro-B cable to the GPS-RTK board.
Now open Windows Device Manager. The NEO-M8 series has an annoying feature where the module comes up as a Windows Sensor rather than a serial device. If your u-blox receiver does not appear under COM ports then right click on the u-blox GNSS Location Sensor and then Update Driver. Next, click on Browse my computer for driver software.
Then “Let me pick”...
Select the first USB serial device.
The SparkFun GPS-RTK board should now enumerate as a USB serial COM port. In the list below, the GPS-RTK board is COM12.
Return to u-center and drop down the port list. Select the COM port that is your RTK board. Congrats! You can now use u-center.
