Learn about Mac features and tools that you can access by pressing and holding one or more keys during startup.

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To use all of these keyboard shortcuts, press and enter the keys immediately after pressing the Effects key to turn on the Mac, or your Mac will begin to reboot later. Hold until the described behavior occurs.

  • Command Up (â) -r: Start using macOS built-in recovery. Or Option-Command-R-Use or Shift-Option-Command-R to boot from outside macOS Recovery Online. macOS Recovery installs multiple versions of macOS, depending on which key you use in combination at startup. If your Mac uses a password, the firmware popprompts you to enter a password.
  • Option (â ¥) or Alt: Launches in Boot Manager, which allows you to select other available boot volumes or volumes. If your Ultimate Mac uses a firmware password, you will be prompted for the password.
  • Option-Command-P-R: Reset NVRAM or PRAM. If your Mac uses this simple firmware password, it will either ignore this key combination or start macOS recovery. (Â ‡ §): Â
  • Shift Start in safe mode. Disabled when using firmware with a password.
  • D: Run Apple Diagnostics. Or use Option-D to download so it can be done from the internet. Disabled when using a firmware password.
  • N: Boot from NetBoot server if your Mac supports network boot sum. To use the default server boot image, hold Option-N instead. Disabled when using a firmware password.
  • Command-S: Launch in single user mode. Disabled later in macOS or Mojave, or when using a firmware password. Start
  • t: Enabled in target disk mode. Disabled when using firmware password and. Start
  • command-v: activated in verbose mode. Disabled when using a firmware password.
  • Eject (â) or F12, mouse button or trackpad button: eject a removable disk, for example. B. optical discs. Disabled when using a firmware password.

If The Keyboard Shortcut Doesn’t Work

If the keyboard shortcut doesn’t work at startup, one of the following solutions might help:

  • Press and hold all turns of the combination, not one at a time.
  • Shut down your Mac. Then pull out the power button to turn on the Mac. Then hold the keys while the best Mac boots up.
  • Wait a few seconds until you hit the keys so your Mac has more time to get serious about the keyboard when it boots up.
  • If you are using a wireless computer keyboard, connect it to your Mac if it works. Or use the built-in keyboard or your own wired keyboard. If you are using a PC keyboard for example. For example, any keyboardwith Windows logo, try this keyboard for Mac.
  • If you are using Boot Camp to boot from Microsoft Windows, set macOS boot in your hard drive boot preferences instead.

Remember, if your Mac is using password-enabled firmware, some of the keyboard shortcuts are devices.

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