How Do I Reinstall macOS from Recovery Mode?

Reinstalling macOS from Recovery Mode is a crucial skill for Mac users seeking to troubleshoot issues, improve system performance, or restore functionality. Whether you’re using an Intel-based Mac or a Mac with Apple silicon (M1, M2, or M3), the process is straightforward. In this comprehensive guide, we will detail the exact steps you need to follow to successfully reinstall macOS, ensuring a smooth and effective process.

Reinstalling macOS on Intel-based Macs

If your Mac is powered by an Intel processor, adhere to these precise steps to reinstall macOS:

1. Start Your Mac in Recovery Mode

  • Shut Down Your Mac: Begin by clicking on the Apple logo in the top-left corner and selecting Shut Down.
  • Power On Your Mac: Press the power button to turn your Mac back on. As it starts, immediately hold down the Command (⌘) + R keys until you see the Apple logo or a spinning globe.

2. Select Reinstall macOS

  • Once the macOS Utilities window appears, click on Reinstall macOS. This option will guide you through the reinstallation process.
  • Click Continue to proceed.

3. Follow On-Screen Instructions

  • Agree to the Software License Agreement: Carefully read the agreement and click Agree to proceed.
  • Select Your Disk: Choose the disk where you want to install macOS, typically labeled “Macintosh HD”. Click Install to begin the installation.

4. Wait for the Installation to Complete

  • The installation will commence, and your Mac may restart multiple times throughout this process. Remain patient and follow any additional prompts as they appear on the screen.

Reinstalling macOS on Apple Silicon Macs (M1, M2, M3)

For users of Apple silicon Macs, the steps differ slightly. Follow these guidelines:

1. Start Your Mac in Recovery Mode

  • Shut Down Your Mac: Click on the Apple logo and select Shut Down.
  • Power On Your Mac: Press and hold the power button until you see Loading Options on the screen.

2. Select Options and Continue

  • When the startup options are visible, click on Options, then click Continue to access the recovery options.

3. Select Reinstall macOS

  • In the Recovery app window, choose Reinstall macOS and click Continue to begin the process.

4. Follow On-Screen Instructions

  • Agree to the Software License Agreement: Review and agree to the terms.
  • Choose Your Disk: Select the disk for installation and click Install.

5. Wait for Installation to Complete

  • Similar to the Intel process, your Mac will restart several times during the installation. Follow any prompts that appear on-screen to ensure a successful installation.

Important Notes for a Smooth Installation

Ensure Internet Connectivity

To facilitate a seamless installation process, ensure your Mac is connected to the internet throughout this procedure. This is especially vital if you are utilizing Internet Recovery.

Erasing Your Disk Before Reinstallation

If you wish to erase your disk prior to reinstalling macOS, you can do so through Disk Utility available in the macOS Utilities window. Please remember:

  • Back Up Important Files: Erasing your disk will permanently delete all data. Make sure to back up any essential files before proceeding.
  • Select Disk Utility, choose your disk, and click Erase. After the disk is erased, return to the Utilities menu to select Reinstall macOS.

Recovery Options for Different Scenarios

If you require different recovery options, consider the following:

  • For Internet Recovery, hold down Option + Command + R during startup. This will help you reinstall the latest compatible macOS version.
  • To reinstall the original version of macOS that came with your Mac or the closest version available, hold Option + Shift + Command + R.

Conclusion

Reinstalling macOS from Recovery Mode is a straightforward process that can resolve numerous issues and enhance your Mac’s performance. By following the steps outlined for both Intel-based Macs and those equipped with Apple silicon, you can ensure a successful reinstallation. Always remember to maintain internet connectivity, back up your important files, and utilize the appropriate recovery options to suit your needs. With this guide, you are now equipped to tackle macOS reinstallation with confidence.