How to install ESP32 environment for Arduino
Find espressif github https://github.com/espressif and select arduino-esp32
Download this project
Find Arduino install folder
Find hardware folder and build blank folder named"espressif"
Under espressif build blank folder named "ESP32"
Unzip the downloaded package and copy all the files to this esp32 folder
Find tools folder and click get.exe
When the exe run over , the black frame will close automaticly
Finally restart Arduino IDE and open tools->Board
You will see the ESP32 Dev Module
Just enjoy it