The Mac Startup Sound. Copyright by Apple, Inc. The startup tone can be disabled one of two ways: permanently or temporarily. In most cases, the temporary way is the best way. To disable the startup tone temporarily, simply keep your Mac’s sound muted with the mute key above the 0 key on your keyboard.
- Mac Os Startup Chime
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- Macbook Startup Sound
- Mac Boot Sound
Boot Camp Control Panel User Guide
You can set the default operating system to either macOS or Windows. The default operating system is the one you want to use when you turn on or restart your Mac.
Set the default operating system
In Windows on your Mac, click in the right side of the taskbar, click the Boot Camp icon , then choose Boot Camp Control Panel.
If a User Account Control dialog appears, click Yes.
Select the startup disk that has the default operating system you want to use.
If you want to start up using the default operating system now, click Restart. Otherwise, click OK.
You can’t change your startup volume to an external FireWire or USB drive while you’re using Windows.
To learn how to change the default operating system using macOS, see Get started with Boot Camp.
Restart in macOS
In Windows on your Mac, do one of the following:
Restart using Startup Manager: Restart your Mac, then immediately press and hold the Option key. When the Startup Manager window appears, release the Option key, select your macOS startup disk, then press Return.
If you’re using a portable Mac with an external keyboard, make sure you press and hold the Option key on the built-in keyboard.
Restart using Boot Camp Control Panel: Click in the right side of the taskbar, click the Boot Camp icon , then choose Restart in macOS.
This also sets the default operating system to macOS.
For more information about restarting in macOS, see the Apple Support article Switch between Windows and macOS.
Mac Os Startup Chime
Mac models from early 2016 and earlier make a chime sound when they start up. Mac models from late 2016 and newer don't have a startup chime, with the exception of MacBook Air (13-inch, 2017).
Mac Os X Startup Sound Download
If there's an issue with your Mac, it might make one of these tones when it starts up:
- One tone, repeating every five seconds: No RAM is installed. If you recently replaced or upgraded your computer's RAM, check to see if it was installed properly. If the issue continues, contact Apple Support.
- Three successive tones, then a five-second pause (repeating): RAM doesn't pass a data integrity check. If you recently replaced or upgraded your computer's RAM, check to see if it was installed properly. If the issue continues, contact Apple Support.
- One long tone while you hold down the power button: An EFI ROM update is in progress. This applies to Mac computers from before 2012.
- Three long tones, three short tones, three long tones: EFI ROM corruption is detected, and your Mac is in EFI ROM recovery mode. Newer computers automatically recover from a corrupted ROM; when this occurs, a progress bar appears on the screen during ROM recovery mode. Don't disturb your Mac while the ROM recovery takes place. When recovery is complete, your Mac restarts.
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Learn more
Macbook Startup Sound
Mac Boot Sound
- Mac computers that have the Apple T2 Security Chip don't have EFI ROM tones.
- If you need to restore the EFI ROM on certain Mac computers produced before 2008, you'll need to use a Firmware Restoration CD to restore the EFI ROM. Search Apple Downloads for the right CD image for your computer.
- Pressing and holding keys on startup can make your Mac function in different ways. To learn more, see Startup key combinations for Mac.