There are several reasons why you might want to re-install the macOS app on your Mac, either because the computer is running incorrectly and you think that a clean installation could solve the problem, or simply sell your Mac.
You should know that it is also possible to reinstall the original version of macOS that Mac is used for, back to the previous version that your computer will no longer work with.
There's no reason you want to reinstall MacOS, here are some easy ways to do it. We'll show you below one of the easiest ways to do it.
How to use Reverse partition, you can re-install the latest version of macOS installed on your Mac. Because MacOS is included with a software update (or earlier Mac App Store) no There are physical installation disks.
For this reason, Apple has made it possible to install an operating system over the Internet using HD recovery mode. One more option would be to install the input to an external drive on an external drive or pendrive.
If your Mac recovery mode is not working, follow the steps in this article how to reboot macOS if Restore is not working.
What do you need to reinstall macOS using recovery mode?
The first thing is to have a backup. If you are planning to clean up your Mac by installing the operating system from scratch to solve the problems you have, you should know that you have the desire to make a backup of your most important documents.
How you do it will depend on whether you want to get your Mac back in the same format, or if you want a clean installation. If you use iCloud Drive to sync your documents to the cloud desktop, you may not need a backup.
In addition to the Internet connection, if you are using recovery mode, you will need to use a Wi-Fi network with WEP or WPA. That's what most home wireless networks do, but if you're on a proxy or PPPoE network, then you will have problems.
How to re-install macOS using the & # 39; Rispect & # 39;
Follow these steps to reinstall the latest version of macOS:
- Start your Mac by holding the & # 39; Command + R & # 39; until you hear the first bell and see the world around you or the Apple logo.
- A & # 39; MacOS Utility & # 39; The next step depends on whether you want to clean the Mac before re-installing the app, or if you want to clean your disk. Click & Disk Utility & # 39; or go to step 8.
- If & # 39; Dis Utility is selected & # 39 ;, click & # 39; Continue & # 39;
- Now select the volume you want to delete. You may need to click on "View> Show all units" before viewing the volume. Note that the process here is slightly different when using MacOS Catalina. When Catalina runs, there will be two volumes called Macintosh HD and Macintosh HD-Data. You will need to clear the volume of data first and then Macintosh HD. If it doesn't work with Catalina, then you need to clear the Macintosh HD volume.
- The next step also depends on the type of macOS you are running. In Mojave and Catalina, and most likely in High Sierra (depending on your Mac) will be APFS. But on a Mac with older versions of macOS, the format must be set to an extended Mac OS (Journaled). You will need a & # 39; Partitioning the Table & # 39; GUID to be selected as a Scheme.
- Click & # 39; Delete & # 39; wait and wait. (There are activities to remove the disc safely).
- Now select Disk Utility> Exit Using Disk Utility & # 39 ;. Or just click on & # 39; Command + Q & # 39 ;.
- You will see the screen of the appliance again, select & # 39; Reinstall macOS & # 39 ;.
- After clicking & # 39; Reinstall macOS & # 39 ;, click & # 39; Continue & # 39;
- Enter your Apple ID if necessary and wait while restarting MacOS. Expect this to take a while.
- When the setup wizard starts, leave this field if you intend to sell your Mac or transfer it to a family member so that the next owner can enter their details. Otherwise, continue to stop.
How to install an older version of macOS using Recovery Mode
With the addition of the & # 39; Command + R & # 39; we mentioned earlier, there are a few key combinations that you can use to re-install macOS using recovery mode.
Th is will allow you to choose between installing the latest version of macOS that is compatible with your Mac, or going back to the macOS version originally sold with your Mac.
You can choose between:
- & # 39; Command + R & # 39; will install the latest version installed on your Mac. It will not update you to the latest version.
- & # 39; Option / Alt + Command + R & # 39; will update you to the latest version of macOS compatible with your Mac. Note: If you are not running Sierra 10.12.4 or later, this will include the version that came with your Mac; If your Mac has a T2 chip, with & # 39; Option / Alt + Command + R & # 39; you will have installed the latest version of macOS on your Mac.
- Shift + Option / Alt + Command R & # 39; (if you are using Sierra 10.12.4 or later) will install the MacOS version that comes with your Mac, or very close.
Follow the steps in the previous section to reinstall MacOS using Restore.
How to connect to the Internet in macOS in recovery mode
To re-install macOS using recovery mode, you must have Internet connection. Follow these steps to connect to the Internet in recovery mode if your Mac is not connected automatically:
- Click on the Wi-Fi menu in the top right corner of the screen.
- Select the Wi-Fi network you wish to use.
- Enter a password if necessary.
Recovery mode should now be connected to the Internet in order to download macOS installation software.
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