How to Disable Your Mac’s Startup Sound

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If you’re a regular Mac user, you know that every time a Mac starts up or reboots, it is accompanied by the startup sound. Some might like this, but others might despise it. While you can mute the startup sound by holding down the “Mute” key just before you shut it down, one of the better ways is to permanently disable your Mac’s startup sound.

To do this, simply follow the steps below.

1. Launch Terminal. This can either be done with Spotlight or by navigating to “/Applications/Utilities/.”

mac-spotlight-open-terminal

2. Once Terminal is up and ready, simply enter the command to disable the boot chime and press Enter:

Since we’re using a “sudo” command here, you’ll be asked to enter the admin password.

mac-disable-startup-sound-terminal-command

The next time you start up your Mac, it will be completely silent, with no chime whatsoever.

To return to the default setting, i.e to enable the startup chime, enter this altered command into Terminal:

mac-restore-startup-sound-terminal-command

There might be many who aren’t really comfortable with using Terminal. If you aren’t, you can use a simple and easy tool such as Silent Start to mute the chime.

1. Download Silent Start from the App Store (it is free).

2. Launch Silent Start from Launchpad. It will ask you if you want it to run automatically during login. Click “Yes.”

silent-start-login-prompt

3. Once started, Silent Start will show up in the menubar. Click on its “Bell” icon, and turn “Mute startup chime” to “On.”

silent-startup-menubar

For those who are curious about its Preferences, here they are.

silent-start-preferences

You can enable/disable automatic launch during startup, disable the startup sound, and whether to show notifications when the volume is restored after startup.

That’s it. Restart your Mac, and you shouldn’t hear the startup chime again. If you have any suggestions/comments, do tell us in the comments below. We always love to hear from you!

Damien Damien

Damien Oh started writing tech articles since 2007 and has over 10 years of experience in the tech industry. He is proficient in Windows, Linux, Mac, Android and iOS, and worked as a part time WordPress Developer. He is currently the owner and Editor-in-Chief of Make Tech Easier.

2 comments

  1. %80 will work fine on many Macs. But none of the % values work on my mid-2015 iMac running 10.14.6. When Silent Start also failed, I contacted Tunabelly for support. Their answer, in part, was that Silent Start wouldn’t work with the headphone jack occupied—which it always is. Soooo… su’ed to root and ran ‘nvram SystemAudioVolume=%80’. So far…silence, even with Silent Start disabled, after a few restarts. From this point, I’ll just wait and see whether things stay quiet.

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