Exchanging generic data between a micro controller and a computer is often done with a USB CDC serial interface. Whenever Windows detects a new USB serial device, it installs a generic driver automatically. Unfortunately the assigned name is also generic, making it harder to find in various programs. While it is possible to write custom drivers with custom device names, it is complicated to install them without a valid signature.

windows-usbserial-rename contains a single batch file (.bat) to rename any USB serial device based on the settings at the start of the file. It will automatically detect any number of devices with given VID/PID combination and update their display names. The COM port number will be appended as (COMxx), where xx is the detected number for the specific device.