The most regular way to reinstall macOS is using macOS Recovery mode. You also can use Disk Copy or Disk Image mode to back up files for your Mac. Select the external hard drive as the destination drive, then click on Clone Now button to securely clone Mac startup disk to the external hard dive and make it be bootable. Connect an external hard drive to your Mac, then open Donemax Disk Clone for Mac, choose disk clone mode OS Clone. Download a disk cloning application - such as Donemax Disk Clone for Mac to help to make a clone on your Mac. Here, we show you a method to clone the startup disk of your Mac to an external hard drive. You can just copy the desirable files to an external hard drive or just make a full clone backup for your Mac. Back up your important data before reinstalling macOSīefore reinstalling macOS, we recommend you to back up your important files.
In this article, we will show you the best way to reinstall macOS. In a special case, such as you will sell your Mac, you also need to wipe the Mac hard drive and reinstall the macOS. And reinstalling macOS also can help you remove malware or fix some issues on your Mac. For example, you may think your Mac is running too slowly and you want to a clean installation to get a new start. That is especially true now that Apple has included the System Integrity Protection feature since in OS X El Capitan, which restricts user access to certain system files.īut, there are also many reasons why you might want to reinstall macOS on your Mac. Most people can safely use the installation disk (startup disk) of Mac OS that came with their computer for many years without any issues.
MacOS is a reliable OS that can generally take care of itself.
Back up your important data before reinstalling macOS
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