How to reinstall macOS

Utilise macOS Recovery to reinstall the Mac operating system.

Get-go upwards from macOS Recovery

Apple silicon

Turn on your Mac and keep to printing and hold the power button until yous see the startup options window. Click the gear icon labeled Options, and so click Keep.

Intel processor

Turn on your Mac and immediately press and concord Control (⌘)-R until yous see an Apple logo or other image.

If you're asked to select a user you know the password for, select the user, click Next, then enter their administrator password.

Reinstall macOS

Reinstalling macOS does not remove data from your Mac. To begin installation, select Reinstall macOS from the utilities window in macOS Recovery, then click Proceed and follow the onscreen instructions.

macOS Recovery options with "Reinstall macOS Monterey" selected

Follow these guidelines during installation:

  • If the installer asks to unlock your disk, enter the password y'all use to log in to your Mac.
  • If the installer doesn't see your deejay, or information technology says that information technology can't install on your computer or volume, you might need to erase your disk outset.
  • If the installer offers you the pick between installing on Macintosh HD or Macintosh HD - Data, cull Macintosh HD.
  • Allow installation to complete without putting your Mac to slumber or closing its hat. Your Mac might restart and show a progress bar several times, and the screen might exist empty for minutes at a fourth dimension.

After installation is complete, your Mac might restart to a setup assistant. If you're selling, trading in, or giving away your Mac, press Command-Q to quit the banana without completing setup. Then click Shut Down. When the new owner starts up the Mac, they can use their own information to complete setup.

Other macOS installation options

When you install macOS from Recovery, you get the electric current version of the most recently installed macOS, with some exceptions:

  • On an Intel-based Mac, you can useShift-Choice-Control-R during startup to be offered the macOS that came with your Mac, or the closest version nonetheless available. Or you can applyOption-Command-R during startup to be offered either the latest macOS that is compatible with your Mac, or in some cases the macOS that came with your Mac or the closest version still bachelor.
  • If the Mac logic board was just replaced, you might exist offered only the latest macOS that is compatible with your Mac.
  • If you just erased your unabridged startup deejay, you might exist offered only the macOS that came with your Mac, or the closest version still available.

Yous tin can too use these methods to install macOS, if the macOS is uniform with your Mac:

  • Apply the App Shop to download and install the latest macOS or an earlier macOS.
  • Use a USB wink drive or other secondary volume to create a bootable installer.

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