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List of the catalog of this article:

• 1,trade compliance solutions How to reinstall the Apple computer system?
• 2, Apple notebook reinstall system (step-by-step tutorial)
• 3, specific operation of Apple computer reinstallation system
• 4, iPhone reinstall system method
• 5, Which button is the Mac reinstall system?
• 6,How to reinstall macOS system on Apple Computer

How to reinstall the Apple computer system?

First, back up all the data. This is very important, because reinstalling the system will clear all data. You can use TimeMachine or iCloud to back up data. In addition, important data can also be copied to an external hard disk or other storage device. Secondly, determine the operating system version that needs to be installed.

The installation steps are as follows: Make a boot disk: You need to make a boot disk containing the installation file of the Apple computer system.You can use the tools officially provided by Apple to create a boot disk. Restart the computer: Insert the boot disk into the computer and restart the computer.

will be displayed again to the first diagram, select the second "Reinstall macOS" and then click Continue. After selecting, you will be prompted "To set up and install macOS Sierra, please click Continue". The system may be different, but the steps are the same. Just click to continue.

The method is as follows: The first step: First, when the MacBook Air is turned off, press the Command and R keys without letting go, and then press the open key in the upper right corner at the same time (remember to continue to press Command + at this time R key).

AppleHow to reinstall the computer system: In the shutdown state, hold down the "Command" + "R" key, and then press the power-on key to release your hand. Note that the "Command" + "R" key cannot be released at this time. Select the system language to be installed and click "→" to continue.

Apple penReinstall the system (step-by-step tutorial)

1. Method 1: Use the command line. First, you need to use a boot disk or USB flash drive to start the Mac computer. Once you enter the boot mode, open the terminal. Enter the following command in the terminal and press "Enter": date 051200002018 This command will set the date and time so that it is 00:00 on May 12, 2018.

2. After restarting the Mac, press the keyboard option + command + R until the countdown appears on the monitor and wait for the next step.

3. Use the U Master USB disk boot disk making tool to make the USB disk into a boot USB disk. Plug the USB flash drive into the computer and restart the computer. Because the Apple PenThere is no Bios setting in the notebook. If you want to boot with a USB flash drive, you usually insert the USB flash drive. Press the "optin key" for a long time to start the computer, and you will enter a boot option interface.

The specific operation of reinstalling the Apple computer system

Reinstalling the system on the Mac computer can be operated through the following steps: Backup data: First, before reinstalling the system, please make sure that your important data It has been backed up. This can prevent data loss.

Use terminal commands: If you have some terminal command line operation experience, you can also use terminal commands to reinstall the Mac system. First of all, you need to put the Mac computer into Recovery Mode, then open the terminal application and enter the corresponding command in the terminal to download and install the system.

Use Bluetooth keyboard: If your Mac computer supports Bluetooth function and you have a Bluetooth keyboard that has been paired and can be used normally, you can reinstall the Mac system through the Bluetooth keyboard. During the system installation process, you need to use the keyboard to operate, such as selecting the installation language, confirming the installation options, etc.

If there is a problem in the process, please don't be in a hurry to cancel, which proves that your computer system is too old. Can't recover online. I demonstrated the Mac at the end of 2013.

Method 1: Use the command line First, you need to use a boot disk or USB flash drive to start the Mac computer. Once you enter the boot mode, open the terminal. Enter the following command in the terminal and press "Enter":Date 051200002018 This command will set the date and time so that it is 00:00 on May 12, 2018.

First, turn on the power switch of the Mac and hold down the command+R key to enter the recovery mode, and we can see the MacOSX utility. Select Disk Utility - then select the option above, which is generally MacintoshHD, and select Erase on the right. It means to delete all the content and reinstall the new system.

iPhone reinstall system method

iPhone reinstall system can also be operated by yourself. The method steps are as follows: to download iTunes software, first download the "iTunes" software,Go to Apple's official website to download and install, and then connect the iPhone and computer with a data cable.

The system can be reinstalled. The iPhone supports system reinstallation through iTunes or recovery mode. Reinstalling the system can solve some software problems and improve system performance and stability. Users can use iTunes to restore the system by backing up the data and then connecting the mobile phone to the computer.

Reinstall the system on the iPhone with a computer. The steps are as follows: First, download the iTunes software on the computer. Connect the Apple to the computer with the original data cable. Open the iTunes software and click the iPhone icon in the window, as shown in the figure.

Install the latest version of iTunes software on your iTunes computer.Connect the mobile phone to the computer. Wait until the iTunes software recognizes the iPhone and clicks the iPhone icon in the iTunes software. To back up the data, first back up the data in the mobile phone and click the "Backup Now" button.

The way to upgrade the iPhone to the latest system is as follows: First, use a data cable to connect the mobile phone and the computer, open iTunes on the computer to enter the main interface, and click the "mobile phone" button in the upper left corner of the interface to enter the mobile phone management.

Which button is the Mac reinstall system?

The key meaning of reinstalling the Apple computer system refers to pressing a specific combination key when starting or restarting the computer to enter the system recovery mode or start the disk utility.

Step 1: First, when the MacBook Air is turned off, press the Command and R keys without letting go, and then press the open key in the upper right corner at the same time (remember to continue to press the Command + R key at this time).

Turn on the computer, enter the home page of the computer, turn off the computer, then hold down the option key on the keyboard, and then press the power key. After the computer is turned on, you will see the following screen. In the utility option Disk Management, click Continue in the lower right corner.

After restarting the Mac, press the keyboard option + command + R until the countdown appears on the monitor and wait for the next step.