Disabled in macOS Mojave or later.Įject (⏏) or F12 or mouse button or trackpad button: Eject removable media, such as an optical disc. To use the default boot image on the server, press and hold Option-N instead.Ĭommand-S: Start up in single-user mode. N: Start up from a NetBoot server, if your Mac supports network startup volumes. Or use Option-D to start up to this utility over the internet. Option (⌥) or Alt: Start up to Startup Manager, which allows you to choose other available startup disks or volumes.ĭ: Start up to the Apple Diagnostics utility. macOS Recovery installs different versions of macOS, depending on the key combination you use. Or use Option-Command-R or Shift-Option-Command-R to start up from macOS Recovery over the internet. Then shut down or restart and try again.Ĭommand (⌘)-R: Start up from the built-in macOS Recovery system. If you're using Boot Camp to start up from Microsoft Windows, set Startup Disk preferences to start up from macOS instead. Despite now being physically present in front of the Mac, I cant find a way to unlock the screen. Some key combinations don't work when your Mac is using a firmware password. (Latest ARD and OS X 10.8.2 on both machines.) When this happens, I come in to work the next day to find the big lock icon and message on my Macs screen. If you're using a keyboard made for a PC, such as a keyboard with a Windows logo, try a keyboard made for Mac. Or use your built-in keyboard or a wired keyboard. If you're using a wireless keyboard, plug it into your Mac, if possible. Some keyboards have a light that flashes briefly at startup, indicating that the keyboard is recognized and ready for use. You might need to wait a few seconds before pressing the keys, to give your Mac more time to recognize the keyboard as it starts up. Then press and hold the key combination after pressing the power button to turn on your Mac. If you can't shut down, press and hold the power button for up to 10 seconds, until your Mac turns off. If you can't get a key combination to work when restarting your Mac, shut down your Mac first. Press and hold all keys in the combination together, not one at a time. Guidelines for using these key combinations If you're not using a Mac with Apple silicon, you're using an Intel-based Mac. Release the power button when you see the startup options screen, which shows your startup disks and a gear icon labeled Options.įrom this window you can start up from a different disk, start up in safe mode, use macOS Recovery, and more. You should now see Mac OS and Recovery as boot options. Now you have to Restart and hold down Option key. Check the option No GUI boot and click OK. Turn on your Mac and continue to press and hold the power button as your Mac starts up. Once accessed the System Configuration Utility click on the Boot tab. On a Mac with Apple siliconįind out if you have a Mac with Apple silicon To find out how to do it, contact Apple's Tech support, or an AASP (Authorized Apple Service Provider).Learn about the Mac features and tools that you can access by holding down one or more keys during startup. For reasons of security, even if we do know the solution we do not post it in these forums - since these forums are accessible by anyone, even by those who have not registered, posting the solution could help nefarious types gain unauthorized access to machines. Alternatively, you can press Power if you are using a newer Mac computer and your Mac will be locked instantly. Just press Control + Shift + Eject at the same time. There is a way that such a password can be disabled. Once you’ve configured the settings of your Mac computer, it is very easy and quick to lock your Mac. It is a reasonably serious level of security, originally directed toward owners of portable machines. Unfortunately, if you can not get past it, and it's real, you will not be able to boot the machine to any disk or volume unless you know the required password. If you have not yet tried, try clicking the righthand button without entering anything in the password entry box. If so, then the firmware password function has been invoked. Your description of the screen sounds like what is shown in the pic in this Apple KBase article.
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