Then macOS reinstallation process will take a long time.

Follow the onscreen instructions to reinstall macOS.

Now, you can reinstall macOS as steps below: When you see the macOS Utilities below, it indicates that Command-R has successfully led you into Mac Recovery Mode.

Release the keys until you see the Apple logo on the screen.

Reboot your Mac computer and simultaneously press down the Command-R keys.

Here's how to use Command R to reinstall macOS:

And Command R is set to invoke Intel-based Macs to Recovery Mode. You should release the keys until hearing the second startup sound or seeing the Apple logo appears and disappears twice.Īpple provides the Mac Recovery Mode containing native recovery tools like Reinstall macOS to help you fix your Mac if necessary.

Press Command-R and Option-P keys when Mac re-startup to reset NVRAM.

It will start your Mac over the Internet from the latest macOS that is compatible with your Mac.

Hit Command-R and Option key when booting up your Mac.

Press Command-R and Shift-Option keys during Mac startup will boot up your Mac over the Internet from the macOS that came with your Mac.

It also can work with other shortcut keys to performe different functions. Command R not working on Mac, how to fixĬommand-R is the key combination to start up your Intel-based Mac, even it is unbootable, from the built-in macOS recovery system. How to use Command R to access Mac Disk Utility This post will show you what Command-R does on Mac, and how it helps you access Disk Utility or reinstall macOS from your corrupted Mac. They help you get communication with your operating system again to fix the issues on your computer.Ĭommand R is the most functional combination when your MacBook won't turn on or has OS-related issues. Shortcut keys are the best assistants when your OS is out of work and can't be controlled by your mouse.

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