Shut down your Mac. Then press the power button to turn on your Mac. Then press and hold the keys as your Mac starts up. 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. Some keyboards have a light that flashes briefly at startup, indicating that the keyboard is recognized and ready for use. If you're using a wireless keyboard, plug it into your Mac, if possible. Or use your built-in keyboard or a wired keyboard.
If you're using a keyboard made for a PC, such as a keyboard with a Windows logo, try a keyboard made for Mac. Then shut down or restart and try again. Other macOS installation options When you install macOS from Recovery, you get the current version of the most recently installed macOS, with some exceptions: On an Intel-based Mac, if you use Shift-Option-Command-R during startup, you're offered the macOS that came with your Mac, or the closest version still available. If you use Option-Command-R during startup, in most cases you're offered the latest macOS that is compatible with your Mac.
Otherwise you're offered the macOS that came with your Mac, or the closest version still available. If the Mac logic board was just replaced, you might be offered only the latest macOS that is compatible with your Mac.
If you just erased your entire startup disk, you might be offered only the macOS that came with your Mac, or the closest version still available. Use the App Store or a web browser to download and install an earlier macOS. Use a USB flash drive or other secondary volume to create a bootable installer. If you are having OS X boot problems, always try this first to check and see if you have a rogue piece of software preventing your Mac from booting properly.
Check out this article for more information about booting into Safe Mode. Using this key combination will cause your Mac to become very verbose on startup and will show a terminal-like interface while booting. It will contain information important to startup, allowing you to diagnose startup problems by seeing any errors that may be occurring during startup. Verbose mode exits automatically when the computer's startup process progresses sufficiently and the blue screen appears.
This is a terminal interface that allows you to login and interact with your computer via text input only. No graphical interface will be loaded. This mode is good for when you need to troubleshoot a startup issue, or modify a file or application that is preventing proper startup.
If you're selling, trading in, or giving away your Mac, press Command-Q to quit the assistant without completing setup. Then click Shut Down. When the new owner starts up the Mac, they can use their own information to complete setup. When you install macOS from Recovery, you get the current version of the most recently installed macOS, with some exceptions:. Iatkos V1. Apple silicon Turn on your Mac and continue to press and hold the power button until you see the startup options window.
Intel processor Make sure that your Mac has a connection to the internet.
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