To initiate Ring Doorbell Setup, first, download the Ring app. Create an account or log in. Tap "Set up a device" and select "Doorbells." Follow on-screen prompts to power on the doorbell and connect it to your Wi-Fi network. Use the app to customize settings like motion detection and notifications. Mount the doorbell securely, ensuring proper alignment. Test the setup to confirm functionality. Enjoy enhanced home security with your Ring Doorbell in place.