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List of the contents of this article:

• 1,< A href='#How to install Apple System' title='How to install Apple System'>How to install Apple System
• 2, iPhone reinstall system method
• 3, How to reinstall the system on Apple computer?
• 4  、What is Apple's system

How to install Apple system

1. Restart the system, enter the computer's BIOS, and it will start The order is modified to the CD-ROM as the first startup item. After saving and modifying, put the installation CD into the optical drive to start the installation.

2. 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.

3. Apple computer or Apple virtual machine; an idle desktop; a USB flash drive that can start the Apple system;Mirror file of Apple system.

4. Wait for the iTunes software to identify the iPhone and click 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. Enter the step of reinstalling the system. The data backup is done. Entering the step of reinstalling the system.

5. Step 1: Confirm the device and the iOS system version. iOS updates are usually released with the newly released device. After setting the app and clicking "General", click "About This Device" to view your device name, model and current iOS version.

iPhone reinstall system method

1. You can reinstall the system. 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.

2. The method of upgrading the iPhone to the latest system is as follows:First of all, 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.

3. Open the "Settings" icon, select "General", and click "Restore". Select "Erase All Content and Settings" to delete all settings and applications in the mobile phone. Click to open the iTunes software on the computer. Click "Check for Update" and select the downloaded iPhone system package. Click "Update" and wait for the automatic flash and power on.

4. The steps to reinstall the system on the iPhone with a computer 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.

5. Use iCloud or a computer to back up your device. Plug the device into the power supply, and then connect to the Internet through the wireless LAN. Go to "Settings" and "General", and then tap "Software Update". If you see multiple available software update options, please choose the software update you want to install.

6. Install the latest version of iTunes software on your 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.

How to reinstall the system on Apple computer?

1. Insert the boot disk into the USB interface of the computer, download the win7 system, and put it into the made USB boot disk.

2. Select Reinstall MacOS to re-display 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.

3. Before reinstalling the system, we first need to back up important data to avoid loss during the reinstallation process. Apple notebooks provide a variety of backup methods, including using iCloud Drive, external hard disk or TimeMachine. Choose a backup method that suits you and make sure that all important data has been backed up.

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

What is Apple's system

Apple is an IOS operating system. iOS is a mobile operating system developed by Apple. Apple first announced the system at the Macworld conference on January 9, 2007. It was originally designed for iPhone, and later it was successively applied to iPod touch, iPad, Apple TV and other products.

iPhone is an iOS operating system.iOS is a mobile operating system developed by Apple. Apple first announced the system at the Macworld conference on January 9, 2007. It was originally designed for iPhone, and later it was successively applied to iPod touch, iPad, Apple TV and other products.

iPhone uses the iOS mobile operating system. Apple first announced the system at the Macworld conference on January 9, 2007. It was originally designed for iPhone, and later it was successively applied to iPod touch and iPad. Like Apple's macOS operating system, iOS is a Unix-like commercial operating system.