How to turn off Mac startup sound in macOS Big Sur?

I got used to the fact that the computer turns on or reboots without sound, but now the sound has returned. This is inconvenient when working at night. How do I turn off the sound?

In the new operating system macOS Big Sur, the developers have returned the old familiar sound of turning on the computer, which all users do not like.

Previously, to disable it, you had to use special commands in the Terminal, but now everything is much simpler.

How to temporarily turn off the Mac startup sound?

The audio greeting in macOS Big Sur is directly related to the system sound level.

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If you turn down the volume or mute the sound entirely before restarting or shutting down your Mac, you won’t hear the startup sound.

If you need to restart your computer at night, just press the F10 key before doing so.

How to permanently turn off Mac startup sound?

A special item has been added in the system settings that allow you to turn off the greeting sound completely.

1. Go to System Preferences – Sound.

2. Click the Sound Effects tab.

3. Uncheck the Play sound on the startup switch.

After doing this, the Mac will not beep when you turn on or restart the system.

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