How to Reset a Mac

If you need to reset your Mac to a factory state,
follow the steps below:

1. Make a Backup

Trust but verify – you can never be sure at 100% that everything goes well and you probably downloaded all the files you need from the system. It is better to be sure. SO first, make a backup with Time Machine. If you don’t know how to do that, read our previous article How to use Time Machine.

2. Disable Online Accounts

Log out from all your accounts (iCoud, iTunes, emails and so on) to prevent additional discomfort and having restrictions on Mac for you or for a person who you are going to sell or donate your Mac.

3. Reinstall macOS

There is a choice – to put the latest version of the operating system or the one you purchased. The choice depends on the purpose of reinstallation: if Mac is for sale it’s logical to install the latest macOS.

To install the current version of the operating system you have to:

  • Have a fast and stable Internet connection to be able to download the OS without interruption.
  • Restart your Mac while loading and clamping ⌘ + Option + R.

You will see the following window:

restart mac

Use Disk Utility to perform compound or partitioning of the hard disk before you start an installation of the operating system.

As soon as the installation is complete, the system will reboot and prompt to configure macOS. If you are preparing to sell your Mac – just hold down the power to supply and turn off the computer. Then the buyer will be able to start his experience from scratch, like a new Mac.


If you reset a Mac, it is the way of struggle with the cluttered system, do not rush to take drastic measures.

You can take advantage of our MacCleaner Pro, which will help you to get rid of junk files on your Mac, as well as to significantly speed up its performance.

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MacCleaner Pro

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