Disable Startup Sound on macOS

If you do not want your Mac device running macOS to play start-up sound when you boot your device, you can follow the below steps to disable it.

Steps to Disable Mac boot sound:

• Click on Apple Logo on macOS Menu Bar,
• Select "System Prefernces..."
• Click on Sound icon,
• Uncheck - "Play sound on startup"
• Close the window.

Now the next time your device reboots you would not hear the boot sound.