Download and install the arduino software: https://www.arduino.cc/en/software
Steps to install the product driver: https://www.arduino.cc/en/Guide/DriverInstallation
Keyboard.begin();//init
Keyboard.press(KEY_LEFT_GUI);//Win button
delay(500);
Keyboard.release(KEY_LEFT_GUI);
Keyboard.press(KEY_RETURN);//Enter button
delay(500);
Keyboard.release(KEY_RETURN);
eyboard.press(KEY_LEFT_GUI);//win + d --- return desktop
delay(500);
Keyboard.press('d');
delay(500);
Keyboard.release(KEY_LEFT_GUI);