How To Reinstall MacOS In A User-Friendly Way

MacOS is quite an efficient Operating System that usually does not require a reinstallation. But, you may think that if you reinstall the Operating System, then you will be able to restore its smooth operation. Otherwise, you might have to encounter several issues. Moreover, if you install the beta version of MacOS, then it may require a reinstallation to prevent certain issues.

How To Reinstall MacOS With Easy Steps?

We are discussing some simple steps to make the reinstallation as simple as possible for you.

1) Prepare ‘MacOS’ for Clean Install

Before proceeding with the installation process it’s always preferred to prepare the Mac for a clean install. To do so, you will need to backup all the data stored on your computer.

1. Use a hard drive which has a size equal to that of your Mac’s internal drive.
   
2. Open ‘System Preferences’ on the PC, choose ‘Time Machine’ and turn on the switch.
   
3. Now click on ‘Select Disk’ to select either the ‘Drive’ or ‘Volume’ for the Time Machine.
   
4. Then format the drive to Mac OS X (Extended) and click on the ‘Options’ button. It will enable the Time Machine to exclude volumes from the backup and get notifications when old backups are deleted.
   
5. After that, the Time Machine will backup all your files on a daily and weekly basis.

2) Use ‘macOS Recovery’

It is a part of the built-in recovery system of your Mac. So you can use it for reinstalling your Mac device. To do that, have a glance at the following steps:

1. Turn on your Mac device, press and hold one of these combinations: ”Command (⌘)-R’, ‘Option-⌘-R’ or ‘ Shift-Option-⌘-R.’
   
2. Release the keys when the Apple logo appears or a prompt for the firmware password appears on the display.
   
3. Your computer will displays the ‘Utilities’ window to state that you have started the macOS Recovery.
   

3) Decide Whether To Erase The Disk

You may like to erase all the content from your Mac for selling it to someone else. So follow these steps to erase the contents and prepare Mac for reinstallation.

1. Select ‘Disk Utility’ on the ‘Utilities’ window and click on the ‘Continue’ button.
   
2. Click on the ‘View’ tab and choose ‘Show all devices’ from the ‘Menu’ bar.
   
3. Then select the’ disk’ or ‘volume’ and click on the ‘Erase’ button.
   
4. Give a name for the ‘disk’ or ‘volume’ and choose either ‘APFS’ or ‘macOS Extended’ to format as a Mac volume. If you do not choose a format, ‘Disk Utility’ will show a format compatible with your Mac.
   
5. After that, choose ‘GUID Partition Map’ and click on the ‘Erase’ option to begin the erasing process.
   
6. Wait until all the contents are fully removed from your Mac and then move on to the installation process.

4) Install macOS

1. Go to the ‘Utilities’ window once again and choose ‘Reinstall macOS.’
   
2. Then click ‘Continue’ to get the on-screen instructions to begin the installation.
   
3. Remember not to turn off your Mac or put it to sleep mode until the installation is completed.
   
4. Your Mac may restart while carrying on the installation and show you the status of the installation process.
   
5. If the Mac restarts to a ‘setup assistant, then press the ‘Q’ command to quit this setup and continue the installation.
   
6. The progress box disappears once the installation of macOS is over.
   
7. Now you can close all the existing windows and shut down your Mac.
   

How To Reinstall ‘macOS’ from USB?

You can reinstall ‘MacOS’ from USB by the following steps:

1. Download MacOS from the App store and launch it on your PC.
   
2. Then click on ‘File’ and select ‘Quit’ to keep the installer in the ‘Applications’ folder on your PC.
   
3. Plug in the USB stick to your to your PC and launch Disk Utilities.’
   
4. Go to the ‘Erase’ tab and click on ‘Format’ to select the Mac OS Extended.
   
5. Enter a name for the USB stick and click on the ‘Erase’ button.
   
6. Once the process is finished, click ‘Done’ and close Disk Utility.
   
7. Navigate to the ‘Utilities’ folder in ‘Applications’ and launch ‘Terminal.’
   
8. Type the ‘sudo /Applications/Install\ macOS\ High\ ‘ command in the ‘Terminal’ and press ‘Enter.’
   
9. Put the name of your installer disc in the place ‘Your Drive Name.’
   
10. Hit the ‘Return’ button and enter your admin password.
    
11. Wait until you find the word, ‘Done’ on the ‘Terminal’ window.
    
12. Finally, you can close the ‘Terminal’ window.
    

How To Install ‘MacOS’ On Startup Disk Drive?

Backup all the important files on your Mac and then follow these steps:

1. Download MacOS from the App store and launch it on your PC.
   
2. Then click on ‘File’ and select ‘Quit’ to keep the installer in the ‘Applications’ folder on your PC.
   
3. Go to ‘System Preferences,’ click on ‘Startup Disk’ and choose the installer you have created.
   
4. Restart the computer and boot it into the Recovery mode.
   
5. Connect the bootable USB to your computer and wait for the ‘MacOS Utilities’ screen to appear.
   
6. Select ‘Reinstall’ and click on the ‘Continue’ button to go to the next window.
   
7. Click ‘I Agree’ to accept the terms and conditions and select Mac’s internal drive.
   
8. Click ‘Install’ and wait for your computer to restart.
   
9. Then connect your computer to the Wi-Fi router and enter the router’s password.
   
10. Enter the details of your iCloud account and set up a new admin user account.
    
11. Download an installer from a reliable website and run it on your PC to reinstall MacOS on startup disk drive.
    

Hope the above methods are sufficient to help you learn how to reinstall MacOs with effective steps.