It is possible your Mac’s disc is beyond repair and Recovery Mode inaccessible. Or maybe you got into Recovery Mode only for everything to freeze up. Perhaps having tried the above and had no luck.

Option/Alt + Command + R will install the latest macOS on your Mac if you have a T2 chip.

If your Intel Mac has a T2 chip you can use this key combination:

Shift + Option/Alt + Command R (if you are running Sierra 10.12.4 of later) will install the version of macOS that came with your Mac, or the one closest to it that is still available.If you don’t want to install the latest version of macOS try this: Note: If you aren’t running Sierra 10.12.4 or later, this will install the version that came with your Mac. This will be the latest macOS compatible with your Mac. Once you enter this mode you will be able to access an Apple server to download the version of macOS. Press Option/Alt + Command + R when you boot up to enter Internet Recovery Mode.We discuss Internet Recovery Mode in more detail below. This method will download a version of macOS from the internet, which might be a solution if you can’t access the Recovery partition on your Mac. You could use Internet Recovery Mode – an option that we will discuss in more detail below. Apple has a couple of other commands for Intel Macs that you could try: There are a few other ways you might be able to force your Mac to start up in recovery mode if Command + R isn’t working for you. Still not entering Recovery mode? Here are a few reasons why you might find that Command + R doesn’t work and your Mac won’t start up in Recovery Mode: Eventually the Recovery Mode Utilities window will appear.When you see an Apple logo or spinning globe you can stop holding Command + R.Press the on button and press and hold the Command key and R on your keyboard while the Mac boots up.If you have an older Mac with an Intel processor this is what you need to do: Wait for the internet recovery screen to load.Choose your language and click on Next.Eventually you will be able to select Options > Continue and this will open up Recovery.Once a “Loading Startup Options” message appears you can let go of the Power button.When the Apple logo appears text will appear informing you that if you continue holding the power button you will be able to access startup options.Press the on button – and keep it pressed while the Mac starts up.If you need to reinstall the operating system from scratch and the Recovery partition is missing, or for some reason you can’t access it, it’s a problem, but luckily there are solutions available. We look in detail at what you can do in Recovery mode in a separate article. But there are actually four separate sections, and one is used in extreme cases where you may want to completely reinstall the operating system macOS (previously known as Mac OS X).Įven if you completely wipe your Mac, and start again from scratch, the Recovery partition should still be there to make it possible to reinstall macOS, restore from your Time Machine backup, and repair or erase your hard disk. You’re used to only seeing one room in the house, the one which has your Desktop, Folders and Applications. (Read: How to partition a Mac hard drive or SSD, or create a APFS volume for more information.) Think of your hard drive as the house, and the volumes as different rooms. A hard drive is typically a single volume, but it is then split up into multiple areas, known as partitions or volumes. They just see the whole drive as one thing. You can now quit Terminal and eject the volume.Most people don’t really think about their hard drives (well, SSD these days) in terms of partitions.

When Terminal says that it's done, the volume will have the same name as the installer you downloaded, such as Install macOS Sonoma.After the volume is erased, you may see an alert that Terminal would like to access files on a removable volume.Terminal shows the progress as the volume is erased. When prompted, type Y to confirm that you want to erase the volume, then press Return.Terminal doesn't show any characters as you type. When prompted, type your administrator password.If the volume has a different name, replace MyVolume in the command with the name of your volume.

Each command assumes that the installer is in your Applications folder, and that MyVolume is the name of the USB flash drive or other volume that you're using. Type or paste one of the commands below into Terminal, then press Return to enter the command.Open Terminal, which is in the Utilities folder of your Applications folder.Plug in the USB flash drive or other volume that you're using for the bootable installer.

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