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      • Restart the computer and after the chime press and hold down the COMMAND and R keys until the menu screen appears. Alternatively, restart the computer and after the chime press and hold down the OPTION key until the boot manager screen appears. Select the Recovery HD and click on the arrow button below the icon.
      discussions.apple.com/thread/6410994

      Reinstall OS X Lion 10.7.5 and wipe hardd… - Apple Community

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  4. discussions.apple.com › thread › 6410994Reinstall OS X Lion 10.7.5 and wipe hardd… - Apple Community

    Jun 21, 2014 · Select the Recovery HD and click on the arrow button below the icon. When the Utilities Menu appears select Disk Utility and click on the Continue button. Follow the instructions in the below link for the OS X version you wish to reinstall. Install or Reinstall Mavericks or Mountain Lion from Scratch.

  5. apple.stackexchange.com › questions › 244408macos - Clean wipe iMac running 10.4.11 OS X? - Ask Different

    Oct 4, 2011 · The best way to get this Mac up and running will be to do an erase and clean install of the latest Mac OS from a bootable USB installer, which someone else with a Mac running a recent version of Mac OS can prepare for you by following the instructions here.

  6. support.apple.com › guide › mac-helpErase and reinstall macOS - Apple Support

    • Overview
    • On a Mac with Apple silicon
    • On an Intel-based Mac with the Apple T2 Security Chip
    • On an Intel-based Mac without the Apple T2 Security Chip

    You can erase your Mac and use macOS Recovery, the built-in recovery system on your Mac, to reinstall macOS.

    WARNING: Erasing your Mac removes all the information from it. Before you start, back up your Mac with Time Machine.

    See full list on support.apple.com

    Your computer must be connected to the internet. If you’re reinstalling on a Mac laptop, plug in the power adapter.

    1.Erase your Mac using Erase Assistant.

    2.Restart your Mac.

    3.Choose Apple menu > Shut Down, press and hold the power button until “Loading startup options” appears, select Options, click Continue, then follow the onscreen instructions.

    See full list on support.apple.com

    Your computer must be connected to the internet. If you’re reinstalling on a Mac laptop, plug in the power adapter.

    1.Erase your Mac using Erase Assistant.

    2.Restart your Mac.

    3.Choose Apple menu > Restart, then immediately press and hold one of these key combinations, depending on what you want to do:

    •Install the latest version of macOS compatible with your computer: Option-Command-R.

    •Reinstall your computer’s original version of macOS (including available updates): Option-Shift-Command-R.

    See full list on support.apple.com

    Your computer must be connected to the internet. If you’re reinstalling on a Mac laptop, plug in the power adapter.

    1.Choose Apple menu > Restart, then immediately press and hold Command-R.

    2.In the Recovery app window, select Disk Utility, then click Continue.

    3.In Disk Utility, select the volume you want to erase in the sidebar, then click Erase in the toolbar.

    4.Type a name for the volume in the Name field, click the Format pop-up menu and choose APFS, then click Erase Volume Group.

    5.When the erase process is complete, click Done, then choose Disk Utility > Quit Disk Utility.

    See full list on support.apple.com

  7. osxdaily.com › howto-reset-mac-to-factory-settingsHow to Reset Mac to Factory Settings - OS X Daily

    • Reboot the Mac and right after the boot chime sound, hold down the COMMAND + R keys together to boot into Recovery Mode.
    • Once in Recovery Mode and at the “macOS Utilities” (or “OS X Utilities”) screen, select “Disk Utility”.
    • Choose “Macintosh HD” (or what the Mac drive is named), then select the “Erase” button.
    • Choose a name for the erased drive, like ‘Macintosh HD’ and then next to “Format” pull down the drop down menu to select “OS X Extended (Journaled)”, then click on “Erase” when you are ready to completely wipe the Mac – ERASING MEANS EVERYTHING WILL BE REMOVED.

  8. support.apple.com › en-gb › 102664Erase your Mac and reset it to factory settings – Apple ...

    Erase your Mac and reset it to factory settings. Use Erase All Content and Settings to erase all settings, data and apps quickly and securely, while maintaining the operating system currently installed. Use Erase All Content and Settings. This feature requires macOS Monterey or later on a Mac with Apple silicon or a Mac with the Apple T2 ...

  9. support.apple.com › en-us › 102664Erase your Mac and reset it to factory settings - Apple Support

    Dec 29, 2023 · Erase your Mac and reset it to factory settings. Use Erase All Content and Settings to quickly and securely erase all settings, data, and apps, while maintaining the operating system currently installed. Use Erase All Content and Settings. This feature requires macOS Monterey or later on a Mac with Apple silicon or a Mac with the Apple T2 ...

  10. www.howtogeek.com › 186860 › wipe-mac-and-reinstallHow to Wipe Your Mac and Reinstall macOS from Scratch

    Apr 5, 2017 · Key Takeaways. To wipe a modern Mac with Apple Silicon or T2 Security Chip, open System Settings > General > Transfer or Reset and click "Erase All Content and Settings" to open the Erase Assistant.