how do i reinstall macos from a hard drive mac big sur version

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- You can use macOS Recovery, the built-in recovery system on your Mac, to erase and reinstall macOS. Choose Apple menu > Restart, then immediately press and hold Command-R. In the Recovery app window, select Disk Utility, then click Continue. In Disk Utility, select the volume you want to erase in the sidebar, then click Erase in the toolbar.
  support.apple.com/guide/mac-help/erase-and-reinstall-macos-mh27903/mac
  Erase and reinstall macOS - Apple Support
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How do I reinstall Mac OS X?
If you’re reinstalling on a Mac laptop, plug in the power adapter. You can use macOS Recovery, the built-in recovery system on your Mac, to erase and reinstall macOS. In the Recovery app window, select Disk Utility, then click Continue. In Disk Utility, select the volume you want to erase in the sidebar, then click Erase in the toolbar.

Erase and reinstall macOS - Apple Support

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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

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What if I can't see the disk when reinstalling Mac OS?
So when you reinstall macOS and you can’t see the disk, first, you must erase a Mac Hi Kim's MacBookAir, Welcome to the Apple Community where some of us do our best to help each other. Apple Support has a web-page online to help you step by step with re-installing Mac OS:

No disk showing to reinstall macOS - Apple Community

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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

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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 do I install Mac OS X?
Choose to install your chosen version of macOS from the external drive. Select Disk Utility. Select your Mac’s start-up disc, probably called Macintosh HD or Home. Click on Erase. Wait for your startup disk to be formatted. Go back to the main Utilities menu and choose Install macOS. Choose your startup drive as the location to install macOS.

How to clean install macOS on your Mac - Macworld

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

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Erase and reinstall macOS on an Intel-based Mac without the Apple T2 Security Chip. You can use macOS Recovery, the built-in recovery system on your Mac, to erase and reinstall macOS. Choose Apple menu > Restart, then immediately press and hold Command-R.
support.apple.com › en-us › 102655How to reinstall macOS - Apple Support

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Sep 30, 2024 · How to reinstall macOS. 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.
osxdaily.com › 2021/04/08 › clean-install-macos-big-surHow to Clean Install macOS Big Sur - OS X Daily

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Apr 8, 2021 · Clean installing MacOS Big Sur 11 requires the following: Mac compatible with macOS Big Sur so that it can run macOS 11.x; MacOS Big Sur boot installer drive that has already been created and ready to use; Full Time Machine backup of all Mac data, or complete data backup using your method of choice
discussions.apple.com › thread › 252633524No disk showing to reinstall macOS - Apple Community

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Apr 5, 2021 · Open Disk Utility. Go to View>Show All Devices. Click your Internal SSD/HD (APPLE SSD or SAMSUNG SSD) or “Macintosh HD” Click Erase. In Format, Click on it, and select Mac OS Extended (Journaled) Click Erase to confirm. Close/quit Disk Utility and open the installer to try again.
www.macworld.com › article › 668644How to clean install macOS | Macworld

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Make a copy of the macOS installer on a USB stick, reformat your drive and then install the macOS onto your Mac from the installer. Use macOS Recovery to reinstall macOS via the web.
- Author: Karen Haslam
www.youtube.com › watchHow to reinstall macOS from macOS Recovery — Apple Support

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Apple Support. 1.88M subscribers. Subscribed. 13K. 1.5M views 4 years ago. Learn how to reinstall the operating system on your Mac, using macOS Recovery. To learn more about this topic,...
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- Author: Apple Support
www.howtogeek.com › wipe-mac-and-reinstall-macosHow to Wipe Your Mac and Reinstall macOS from Scratch

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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.