How to Wipe My Mac

Kyle Wood

Mac, Tutorials

Are you looking to wipe your Mac and start fresh? Whether you’re selling your Mac, encountering software issues, or simply wanting to clean up your device, wiping your Mac can be a great solution. In this tutorial, we’ll guide you through the step-by-step process of wiping your Mac and reinstalling macOS.

Before You Begin

Before you proceed with wiping your Mac, it’s important to back up all of your important files and data. This will ensure that you don’t lose any valuable information during the process. You can use Time Machine or any other backup method of your choice.

Step 1: Sign Out of iCloud

The first step is to sign out of iCloud on your Mac. This will ensure that all of your iCloud data, including contacts, calendars, and photos, are properly disconnected from your device.

  1. Go to the Apple menu in the top-left corner of the screen and click on “System Preferences”.
  2. Select “Apple ID” from the preferences window.
  3. Click on “Overview” in the sidebar and then click on “Sign Out”.

Step 2: Deauthorize iTunes

If you have authorized iTunes on your Mac to play purchased content, it’s important to deauthorize it before wiping your Mac. This will prevent any issues when authorizing iTunes on a new device in the future.

  1. Open iTunes.
  2. In the menu bar at the top of the screen, click on “Account”.
  3. Select “Authorizations” and then click on “Deauthorize This Computer”.

Step 3: Erase Your Mac

Now it’s time to erase your Mac’s hard drive. This will remove all of your data and settings, so make sure you’ve backed up everything important.

  1. Restart your Mac.
  2. While your Mac is starting up, press and hold down the “Command” and “R” keys simultaneously until the Apple logo appears.
  3. In the macOS Utilities window, select “Disk Utility”.
  4. In Disk Utility, select your startup disk from the list on the left.
  5. Click on the “Erase” tab, then choose a format for your disk (usually “APFS” or “Mac OS Extended (Journaled)”).
  6. Enter a name for your disk, then click on the “Erase” button.

Step 4: Reinstall macOS

After erasing your Mac, you’ll need to reinstall macOS to set it up as a new device.

  1. In the macOS Utilities window, select “Reinstall macOS”.
  2. Click on “Continue”, then follow the on-screen instructions to reinstall macOS.


If you’re selling or giving away your Mac, it’s recommended to skip setting up your Mac with your Apple ID during the reinstall process. This will allow the new owner to set up the Mac with their own Apple ID.

Once you’ve completed these steps, your Mac will be wiped and ready for a fresh start. Remember to restore your files from your backup and set up your applications and preferences again. Enjoy your clean and optimized Mac!

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