![]() ![]() If you're using Boot Camp to start up from Microsoft Windows, set Startup Disk preferences to start up from macOS instead. Then shut down or restart and try again.Some key combinations won't work if your Mac is using a firmware password.Booting an ARM M1 Mac from External Boot Media. If you're using a keyboard made for a PC, such as a keyboard with a Windows logo, try a keyboard made for Mac. Using the OPTION key to load the boot menu and choose an external disk should work fine after this. 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 recognised and ready for use. You may need to wait a few seconds before pressing the keys to give your Mac time to recognise the keyboard as it starts up.Then press and hold the key combination after pressing the power button to turn on your Mac. If your Mac won'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 of the keys in the given combination together, not one at a time. ![]()
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