If your MacBook Pro is slowing down due to age or too many questionable apps and programs, speed up the laptop reformatting process. This action erases the MacBook Pro and returns it to factory settings, after which you install a clean copy macOS through the Internet. Reformatting may seem like a last resort, but it’s easy to do and extends the life of a failing MacBook.

Reformatting is also a good idea if you plan on selling, giving away, or selling your MacBook Pro. In these cases, do not copy your data back to the laptop after reformatting it.

Before you start

Reformatting your MacBook Pro erases all information on the device. Make a backup of your MacBook before continuing with this option.

If your Mac is not set up to back up with time machine transfer files to external hard drive or flash drive which is a smart investment if you don’t have a backup drive.

How to reformat a MacBook Pro

Reformatting your MacBook Pro wipes the system and your data, erasing any issues that were affecting the device. When it’s reformatted, you can install a fresh version of macOS.

While you can uninstall your MacBook Pro without an Internet connection, you must have an Internet connection to install a new copy of macOS. Before starting this process, make sure you have an available network.

  1. Turn on or restart MacBook Pro with the power button and immediately press and hold ctrl+r on the keyboard until the Apple logo or other startup screen appears. Release the keys after you see the Apple logo, spinning globe, or other startup screen. This process boots the Mac into macOS recovery mode.

  2. AT window » Mac OS Utilities» select » Disk Utility» then click » Proceed» .

    macOS Utilities window
  3. On the left panel Disk Utility select your boot drive. By default it is called Macintosh HD but if you’ve renamed your startup drive, select it.

  4. Click Erase at the top of the window.

  5. Enter the name you want to have on the disk after it has been deleted. Apple recommends using the name Macintosh HD .

  6. Choose format: APFS or Mac OS Extended (in magazine) .

    Disk Utility shows the compatible option by default.

  7. If the Mac asks for a schema, select GUID Partition Map .

  8. Click Erase and wait for the process to complete.

  9. AT menu disk utility select Exit Disk Utility .

How to install the latest version of MacOS

After reformatting your MacBook Pro, you should be back in window macOS utilities . If not, boot back into macOS Recovery as you did to start the reformatting process.

You must be connected to the Internet to complete the MacOS installation. Your MacBook Pro will prompt you to connect to Wi-Fi to continue with the installation process.

  1. Restart your MacBook Pro and click ctrl+r on the keyboard until the Apple logo or other startup screen appears. Release the keys when you see the Apple logo or the startup screen. This process is loaded into macOS Recovery.

  2. Click » Reinstall macOS» or » Reinstall OS X» and then click » Proceed» .

  3. Click your startup disk in the left pane. By default it is called Macintosh HD . If you have renamed your startup drive, select it.

  4. Click Install . This process reinstalls the latest version of macOS that your computer can run.

  5. After the installation is complete, your MacBook Pro will restart and display the Setup Assistant.

  6. Customize your reformatted MacBook Pro to your specifications. Transfer files saved on an external hard drive or flash drive to your computer.

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