834      iPhone_iPad_Mac_apple

how to disable start up sound in mac air runnin...

Guys,

Is there a way I can permanently disable to the start up sound as it is really annoying and wakes up the whole neighbourhood.

I have tried adding the below code in terminal but it doesnt work..

sudo nvram SystemAudioVolume=%80

Any suggestion is much appreciated.

Thanks.

最后更新：2017-09-12 15:41:47

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