Change Windows USB device name in PlatformIO and Arduino IDE

 PlatformIO:

1. Find board json file under C:\Users\username\.platformio\platforms\atmelavr\boards\,

2. Change usb_product value.

C:\Users\username\.platformio\platforms\atmelavr\boards\micro.json

"usb_product": "Your device name",

Arduino IDE:

1. Find boards.txt under 

C:\Users\username\AppData\Local\Arduino15\packages\arduino\hardware\avr\1.8.3

2. Find board name ex. Arduino Micro

3. Change micro.build.usb_product value 

#micro.build.usb_product="Arduino Micro"

micro.build.usb_product="Your device name"