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#Erase hard drive mac reinstall os install
#Erase hard drive mac reinstall os password

Transfer files to another device Connect an external device (such as your new Mac Mini or an external hard drive), then use the Finder to locate and move the files you want to keep. Once you have an iCloud backup, it’s a good idea to sync the files to another device running iCloud to ensure no errors occurred. The process is automatic, so you’ll need to wait for iCloud to sync before you can move on to the next step. Time Machine lets you choose which files to restore or, you can restore your entire system from Time Machine backups. Time Machine backup Set up Time Machine (you’ll need external storage), then browse to the Time Machine menu and select “Backup Now.” When the backup is complete, you can connect your external storage to a new Mac to transfer your files. Transfer your files and settings to a new Mac with Migration Assistant No matter which Mac Mini backup method you use, double-check that the backup was successful before moving on to the next step.There are four ways to backup your Mac Mini: You can wipe all your data in these four easy steps. Use a USB flash drive or other secondary volume to create a bootable installer.Protect your accounts, credit cards, personal photos, and other data by erasing your Mac Mini data before you sell it.

#Erase hard drive mac reinstall os install

Use the App Store to download and install the latest macOS or an earlier macOS.

You can also use these methods to install macOS, if the macOS is compatible with your Mac:

If you just erased your entire startup disk, you might be offered only the macOS that came with your Mac, or the closest version still available.

If the Mac logic board was just replaced, you might be offered only the latest macOS that is compatible with your Mac.

Or you can use Option-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 available.

On an Intel-based Mac, you can use Shift-Option-Command-R during startup to be offered the macOS that came with your Mac, or the closest version still available.

When you install macOS from Recovery, you get the current version of the most recently installed macOS, with some exceptions: When the new owner starts up the Mac, they can use their own information to complete setup. If you're selling, trading in, or giving away your Mac, press Command-Q to quit the assistant without completing setup. Your Mac might restart and show a progress bar several times, and the screen might be empty for minutes at a time.Īfter installation is complete, your Mac might restart to a setup assistant.

Allow installation to complete without putting your Mac to sleep or closing its lid.

If the installer offers you the choice between installing on Macintosh HD or Macintosh HD - Data, choose Macintosh HD.

If the installer doesn't see your disk, or it says that it can't install on your computer or volume, you might need to erase your disk first.

#Erase hard drive mac reinstall os password

If the installer asks to unlock your disk, enter the password you use to log in to your Mac.To begin installation, select Reinstall macOS from the utilities window in macOS Recovery, then click Continue and follow the onscreen instructions.įollow these guidelines during installation:

Reinstalling macOS does not remove data from your Mac.