How to reinstall the system on an Apple computer, how to reinstall the system on an Apple computer

How does an Apple computer reinstall the system from scratch?

Step 1: 1. When your MacBook Air is turned off, press the Command and R buttons and then press the on/off button in the upper right corner at the same time (remember to continue pressing the Command + R keys at this time).

Step 2: Once you have entered this interface, you can release all the buttons. There are 4 options:

Restore from Time Machine Backup is to restore the computer from the image file you have backed up to Time Machine in the past, reinstall Mac OS X as the name suggests is to reinstall Mac OS X Lion, Get Help Online is to retrieve the help file from the online to understand the reinstallation steps and common problems, and finally the Disk Utility is used to manage the hard drive, including: split magnetic area, Formatting the disk area, etc.

Step 4: Click Get Help Online to see all the information and steps of the reply system.

Step 6: If you click Restore from Time Machine Backup, you will be able to access this interface. Remember to connect the external hard drive that you used as a Time Machine backup to your MacBook Air at this point, then click Continue.

Step 7: If you have connected your hard drive, you should be able to see past backup files on this page, just select and click Continue to restore your MacBook Air to the same state as it was when it was backed up. Since I didn't use Time Machine, I won't go into this feature here.

Hello, the steps of the Apple Electric Data Bureau Brain Heavy Limb Bi Liang System are as follows:1Back up your data:

Before reinstalling the system, be sure to back up your important data to avoid data loss. 2.Enter Recovery Mode:

Restart your computer and press and hold the Command + R keys until the Apple logo and progress bar appear, enter recovery mode. 3.Select Disk Utility:

In recovery mode, select the "Disk Utility" option and select the disk on which you want to reinstall your system. 4.Erase the disk:

In Disk Utility, select the "Erase" option, then select the "Mac OS Extended (Journaled)" format, and click the "Erase" button. 5.Mounting System:

Close Disk Utility, select the Reinstall macOS option, and then follow the prompts to select the version of the system you want to install and where you want to install it. 6.Waiting for installation:

The installation process will take a certain amount of time, wait for the installation to be completed, and then follow the prompts to set up and restore the data. The above is the procedure for reinstalling the system of Apple computer, it should be noted that you must back up your data before reinstalling the system to avoid data loss.