
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.
#Control options for mac mac#
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 keys as your Mac starts up. Then press the power button to turn on your Mac.

Disabled in macOS Mojave or later, or when using a firmware password. Command-S: start up in single-user mode.To use the default boot image on the server, press and hold Option-N instead. Disabled when using a firmware password. 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. Disabled when using a firmware password. D: start up with the Apple Diagnostics utility.If your Mac is using a firmware password, it ignores this key combination or starts up from macOS Recovery. Option-Command-P-R: reset NVRAM or PRAM.If your Mac is using a firmware password, you'll be prompted to enter the password.

