MacBook Air, as Apple's flagship product, has won the favor of many users with its excellent performance and elegant design. However, when pursuing higher performance or protecting personal privacy before reselling, restoring the MacBook Air to factory settings is particularly important. So, how to correctly and effectively restore the MacBook Air to factory settings? This article will guide you through the process and offer expert advice to help you complete the operation successfully.

Step 1: Data backup

Before you begin restoring your MacBook Air to factory settings, be sure to back up your data. Resetting your MacBook Air to factory settings will delete all data, such as files, apps, and user preferences. It is recommended that you use Time Machine to back up your data. Time Machine is a built-in backup tool in macOS that can automatically back up your entire system.

1. Connect an external storage device: Connect an external hard drive or SSD to your MacBook Air.

2. Start Time Machine: Open System Preferences, select "Time Machine", and then click "Select Backup Disk".

3. Select backup disk and back up: Select the connected external storage device as the backup disk, and then click "Back up now".

Once you complete the backup, ensure that you safely save all important data.

Step 2: Log out of Apple ID and iCloud

To add a new user on a MacBook Air, first log out of the Apple ID and iCloud. This will clear all data from the device. After logging out, you can then set up the new user account. This process will ensure that the new user successfully activates the device.

To open System Preferences, click on the Apple logo in the top left corner of the screen and choose "System Preferences".

2. Enter Apple ID settings: Click the "Apple ID" icon.

3. Sign out of iCloud: Select "iCloud" in the sidebar, then click the "Sign Out" button. Make sure to select the option to keep a copy so that you can still access the data on other devices. 

4. Sign out of Apple ID: Return to the Apple ID main interface, click "Overview", and then click "Sign Out".

Step 3: Start Recovery Mode

To restore your MacBook Air to factory settings, you need to enter recovery mode. In recovery mode, you can access macOS Utilities, perform disk cleanup and system reinstallation.

1. Shut down and start recovery mode: After shutting down, hold down Command (⌘) + R keys, then press the power button to start the MacBook Air until the Apple logo or the spinning globe icon appears.
2. Select macOS Utilities: After entering recovery mode, you will see the macOS Utilities window

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Step 4: Erase the hard drive

Before resetting your MacBook Air, make sure to erase the hard drive to delete all data.

1. Select Disk Utility: In the macOS Utilities window, select Disk Utility and click Continue.

2. Select the startup disk: Select Macintosh HD or the system disk in the Disk Utility sidebar.

To delete the disk, press "Erase." Choose either "APFS" or "Mac OS Extended (Journaled)" format. Click "Erase" to confirm in the pop-up box.

Step 5: Reinstall macOS

After erasing the disk, the next step is to reinstall macOS.

1. Choose to reinstall macOS: Return to the macOS Utilities window, select "Reinstall macOS" and click "Continue".

2. Follow the prompts to install: Follow the on-screen instructions to complete the reinstallation of macOS. The installation process requires an internet connection and may take some time, so please be patient.

Step 6: Complete the setup

After the reinstallation is complete, the MacBook Air will automatically restart and enter the new system settings interface. Follow the instructions on the screen. The instructions will help you set up basic settings. These settings include choosing a language, connecting to a network, and making a user account.

You have successfully restored your MacBook Air to factory settings by following the above steps.

Resetting the device to its factory settings can protect your privacy and improve its performance. This can lead to a better user experience. Researchers use scientific methods for this process. I hope the steps and suggestions in this article help you reset your MacBook Air to factory settings successfully.

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