About the screens on your Mac as it starts up

These are some of the screens you might see on your display during Mac startup.

Startup screens can vary by Mac model, operating system (macOS), and more. Some screens, such as the prohibitory symbol  or question mark, mean that you need to resolve an issue before your Mac can finish starting up. For all Mac models, startup is complete when you see the Finder menu bar, desktop, and Dock.

Prohibitory symbol

A circle with a line or slash through it means that the selected startup disk contains a Mac operating system, but it's not a macOS that your Mac can use. You should reinstall macOS on that disk.


Question mark

A folder with a question mark means that the selected startup disk isn't available or doesn't contain a Mac operating system. Learn how to resolve a flashing question mark.


Blank (empty) screen

It's normal for a blank screen to appear once or more during startup. It can be black, gray, blue, or a desktop picture. If an image doesn't appear after a few moments, make sure that your display is turned on, connected, and has its brightness turned up.



Spinning globe

When using a network startup disk, your Mac shows a spinning globe instead of an Apple logo. A spinning globe also appears when starting up from macOS Recovery over the Internet. As startup continues, you should see a progress bar or indicator spinning progress indicator, which might alternate with a blank screen several times.


Globe with alert symbol

You might see a globe with an exclamation point when your Mac is unsuccessfully attempting to start up from macOS Recovery over the Internet. Your Mac might not be able to connect to the Internet, or it might be using a network configuration that doesn't work with macOS Recovery. Try these solutions:

  • Use Command-R at startup to attempt to use the built-in macOS Recovery system instead of macOS Recovery over the Internet.
  • Connect to the Internet using Ethernet instead of Wi-Fi, or vice versa.
  • Connect to the Internet from a different network.
  • Try again later, because the issue might be temporary.


Lock icon

If your Mac is using a firmware password, the lock icon appears when you try to start up from another disk or volume, such as an external drive or macOS Recovery. Enter the firmware password to continue.


System lock PIN code

Your Mac asks for a PIN code when it has been remotely locked using Find My. Enter the four-digit or six-digit passcode to continue.


Login window

At the login window, enter your user account password to log in to your Mac. If FileVault is turned on, this also unlocks your disk. You might see a default desktop picture in the background, which might change to your chosen desktop picture when you select your account.


Thunderbolt, USB, or FireWire symbol

A large Thunderbolt , USB , or FireWire  symbol onscreen means that your Mac is in target disk mode.


Learn more

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