How to Completely Disable the Mac Boot Chime

If you’re a Mac owner, you’ve probably heard the loud startup chime every time your Mac restarts. While you can temporarily mute it by holding down the Mute key, you can also disable it completely using a simple command. This guide will show you how.

Steps to Disable the Mac Boot Chime

Follow these steps to turn off the Mac Boot Chime:

  1. Open Terminal, which can be found in the Applications/Utilities directory.
  2. Type the following command and press Enter:
    sudo nvram SystemAudioVolume=%80
  3. Enter your administrator password when prompted.
  4. The next time you restart your Mac, it will be completely silent.

Note that some Macs may require a slightly different command syntax. Another variation that works on some modern Macs is:
sudo nvram SystemAudioVolume=%01

How to Re-enable the Mac Boot Chime

If you want to restore the startup sound, simply delete the variable using the following command:

sudo nvram -d SystemAudioVolume

If you prefer not to use the Terminal, you can also use a tool like StartUp Ninja to easily mute the chime.


1. Can I disable the Mac Boot Chime on any Apple device?

This guide is specific to Mac devices running macOS or iOS.

2. Is this guide free to access?

Yes, this guide on how to disable the Mac Boot Chime is completely free to read.

Editorial Staff
Editorial Staff
The Bollyinside editorial staff is made up of tech experts with more than 10 years of experience Led by Sumit Chauhan. We started in 2014 and now Bollyinside is a leading tech resource, offering everything from product reviews and tech guides to marketing tips. Think of us as your go-to tech encyclopedia!


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