Can't disable startup sound on a Macbook Pro 2018 running High Sierra after updating to itunes 12.8.3.1.

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Can't disable startup sound on a Macbook Pro 2018 running High Sierra after updating to itunes 12.8.3.1.

Can't disable startup sound on a Macbook Pro 2018 running High Sierra after updating to itunes 12.8.3.1. No "play on startup sound" command is present in system preferences Neither the Terminal string " sudo nvram StartupMute=%00" ( and similar ones found on the web) nor mute key worked.

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MacBook Pro 15″, macOS 10.13

Posted on Jan 5, 2022 2:53 AM

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Answer 1

AppleJen77

Community Specialist

Jan 6, 2022 6:40 AM in response to mediga

Hello there mediga,

Thanks for reaching out to the Apple Support Communities! That’s a great question you have about turning off the startup sound on your Mac running High Sierra. This feature became available with Big Sur and later. Take a look at this article to Turn the Mac startup sound on or off.

This article will also give you information about using Big Sur: macOS Big Sur is compatible with these computers

Cheers!

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Can't disable startup sound on a Macbook Pro 2018 running High Sierra after updating to itunes 12.8.3.1.

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