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   How do I reinstall Mac OS X?

   • Use macOS Recovery, your computer’s built-in recovery system, to reinstall the Mac operating system. Before you begin Shut down your Mac Start up from macOS Recovery Reinstall macOS from Recovery If you need help Reinstalling macOS doesn't remove your apps or personal data, but it’s still a good idea to back up your Mac first, if possible.

   How to reinstall macOS - Apple Support

   support.apple.com/en-us/102655

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   What if I can't install macOS from recovery?

   • If you can’t complete macOS installation from macOS Recovery, make sure that your Mac is connected to the internet,* and learn what to do if an error occurred while updating or installing macOS. If you still can’t install macOS from Recovery, contact Apple Support. * You need a broadband internet connection that uses DHCP over Wi-Fi or Ethernet.

   How to reinstall macOS - Apple Support

   support.apple.com/en-us/102655

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   How do I reinstall macOS from a hard drive?

   • With your drive wiped clean, you are now ready to reinstall macOS. If you booted from a functioning recovery partition, click the "Reinstall macOS" button to get started. The installation process will begin. If you booted from a USB disk, click "Continue" to advance to the installer. You'll be asked which hard drive you want to install to.

   How to Wipe Your Mac and Reinstall macOS from Scratch - How-To Geek

   www.howtogeek.com/186860/wipe-mac-and-reinstall-macos/

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   Should I reinstall my Mac?

   • In the past, it was helpful to reinstall the system if you wanted to correct some Mac problems, but today this solution doesn’t make as much sense. Since macOS Big Sur (introduced in 2020), macOS has its home on its own volume, which is both read-only and cryptographically signed and sealed (referred to as a Sealed System Volume).

   How to clean install macOS on your Mac - Macworld

   www.macworld.com/article/668644/how-to-clean-install-macos-on-your-mac.html

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   How to reinstall macOS using Recovery mode?

   • To reinstall macOS using Recovery mode you have to connect to the internet. Follow these steps to connect to the internet in Recovery mode if your Mac hasn’t automatically connected: Click the Wi-Fi menu in the upper-right corner of the screen. Select a Wi-Fi network. Enter the Wi-Fi password (if required).

   How to reinstall macOS - Macworld

   www.macworld.com/article/671404/how-to-reinstall-macos.html

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   How do I reinstall a Mac from a time machine?

   • To enter Recovery on an Intel Mac press Command+R. Once Recovery starts up you’ll see a macOS Utilities window with options to Restore From Time Machine Backup, Reinstall macOS [version], Safari (or Get Help Online in older versions) and Disk Utility. If you want to wipe the Mac before reinstalling choose Disk Utility.

   How to clean install macOS on your Mac - Macworld

   www.macworld.com/article/668644/how-to-clean-install-macos-on-your-mac.html

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2. Videos

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     2:43

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     How to reinstall macOS from macOS Recovery — Apple Support

     Aug 19, 2020

     1.5M Views

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     3:24

     youtube.com

     How to Install, Reinstall, or Restore macOS Using Internet Recovery | A Comprehensive Guide 🔧

     Feb 11, 2020

     1.1M Views

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     4:49

     youtube.com

     How To Reinstall macOS On ANY Mac

     Aug 9, 2022

     530.6K Views

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3. support.apple.com › en-us › 102655How to reinstall macOS - Apple Support

   support.apple.com › en-us › 102655

   • Cached

   Sep 30, 2024 · You can use macOS Recovery, your computer's built-in recovery system, to reinstall the Mac operating system. Reinstalling macOS doesn't remove your personal data.

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

   support.apple.com › guide › mac-help

   • Cached

   • 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

5. support.apple.com › en-us › 102662How to download and install macOS - Apple Support

   support.apple.com › en-us › 102662

   • Cached

   Sep 16, 2024 · If you want to reinstall macOS, or your Mac doesn't start up all the way because it doesn't have a working operating system, you can use the built-in Recovery system to reinstall macOS. How to reinstall macOS from macOS Recovery. Use the App Store. To download macOS from the App Store, you must download from a Mac that is compatible with that ...

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

   www.howtogeek.com › 186860 › wipe-mac-and-reinstall

   • Cached

   Apr 30, 2023 · Option 1: Factory Reset Your Mac. Option 2: Wipe and Reinstall macOS from Scratch. Enjoy Your Squeaky Clean Mac. 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.

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7. www.youtube.com › watchHow to reinstall macOS from macOS Recovery — Apple Support

   www.youtube.com › watch

   • Cached

   Learn how to reinstall the operating system on your Mac, using macOS Recovery. To learn more about this topic, visit the follow article:...more.

   • Video Duration: 3 min
   • Views: 1.5M

   • Author: Apple Support

8. www.macworld.com › article › 671404How to reinstall macOS - Macworld

   www.macworld.com › article › 671404

   • Cached

   Here's how to restore a Mac by reinstalling macOS via the internet using macOS Utilities and Recovery mode.

9. www.macworld.com › article › 668644How to clean install macOS on your Mac - Macworld

   www.macworld.com › article › 668644

   • Cached

   Option 1: Erase All Content and Settings (macOS Monterey and later) Option 2: Do a clean install via Recovery. Option 3: Do a clean install macOS using a bootable USB. In this article, we’re...