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List of contents of this article:

• 1, two methods of disc installation system
• 2, CD-ROM reinstall system steps
• 3, How to reinstall the system through CD-ROM
• 4 、 How to reinstall the system with CD-ROM?

Two methods of CD-ROM installation system

1. The first step is to set the light start: the so-called light start means that the computer first reads the optical drive when starting, so if the optical drive has The CD with the light start function can be read out before the hard disk starts (for example, when installing the system from the CD).

2. First, open the optical drive on the computer case and press the open button above directly. After opening, put the CD in, and then close the optical drive. At this time, the computer will restart automatically. Before restarting the computer, enter bios first, and then set the boot method. That is, we need to start the system from the CD-ROM in order to install the system.

3. There are two common ways to install the CD-ROM system. Quickly select the boot device and look at the screen prompts after turning on the power. Many computers support quick selection of the boot device. Press F8, F9 or F12 to call up the boot computer selection menu. Select the optical drive to start the installation.

CD-ROM reinstall system step

Under normal power-on, put the CD-ROM into the optical drive and restart the computer (if it is abnormal, it can be inserted after the power is started). Press DEL or other keys to enter the BIOS, and set the settings to start from DVD-F10-Y-Enter. After entering the PE interface, select "Install System" after entering the PE interface.

You can follow the steps below to install the system disk system, buy a win7 CD, buy a win7 CD, and put the system CD into the optical drive.Set the startup mode to turn on the power, and then observe the prompts on the screen. Before starting the system, press "F2" to set the BIOS.

Insert the windows10 system installation disk, boot into the system installation interface 2 Select Click "Install Now" 3 Enter the product key, if it doesn't work, click "I don't have the product key" 4 Select the installed operating system version as needed 5 Select "Custom Install only win Dows advanced" 6.

There are two common methods for CD-ROM installation system. Quickly select the boot device and look at the screen prompts after turning on the power. Many computers support quick selection of the boot device. Press F8, F9 or F12 to call up the boot computer selection menu. Select the optical drive to start the installation.

Prepare a system CD-ROM, which will need to be reinstalled on the computer for backup.Step 1 Press and hold the "F12" key on the keyboard, and the "Please select boot device (Startup Device Menu)" menu will appear.

How to reinstall the system through the CD-ROM

1. In the first step, place the system CD-ROM to the optical drive of the computer. The second step is to wait for the successful reading of the CD, turn on the computer, and immediately tap the F12 startup hotkey, and the startup hotkeys of different computer motherboards are different, so you can tap them according to the following keys.

2. There are two common methods for CD-ROM installation system. Quickly select the startup device and look at the screen prompts after power-on. Many computers support quick selection of the startup device. Press F8, F9 or F12, you can call up the boot computer selection menu, select the optical drive, and you can start the installation.

3. Put the CD-ROM to buy a win7 CD-ROM, and put the system CD-ROM into the optical drive. Turn on the power in the BIOS settings, and then observe the prompts on the screen. Press "F2" to set the BIOS before starting the system.

4. Method (first of all, a system installation disk must be prepared): Restart the computer. When a word similar to "Press to enter setup" appears on the screen, you should pay attention to what "***" is. *** represents what key to press to enter the BIOS.

5. Steps to install the CD-ROM system Enter the BIOS settings to start up - insert the CD-ROM - press DEL (desktop) orF2 key (most notebooks) or other keys to enter the BIOS-set the computer to start from the CD-ROM-F10-Y-Enter, and the computer will automatically restart to enter the system installation. After updating the driver and installing the system, just update the driver with the driver sprite.

6. First of all, put the system CD-ROM into the computer, then start the computer, and then press the [Delete] key to enter the BIOS page as shown in the figure below. The second step is as shown in the figure below, first move the cursor to the [Advance BIOS Features] menu, and then press the [Enter] key.

How to reinstall the system with CD-ROM?

1. Method 1: Directly install the operating system. The serial number of item 1 installed on disk C is 1, and press the number key 1 on the keyboard.The computer automatically installs the operating system to the C disk, and I just need to wait quietly. Method 2: Install the operating system with PE. In the installation interface, select 2 to enter the PE system.

2. First, make sure that your optical drive is the first startup order and supports booting from the optical drive. To install from the CD-ROM, you need to set the BIOS so that the system can start from the CD-ROM.

3. Insert the XP installation CD before restarting, and press Enter when you see the word CD at the bottom of the screen. Only then can the light start, otherwise the computer will start to read the hard disk, that is, skip the light start to start from the hard disk.

4. You can follow the steps below to install the system disk, put the system into the CD, buy a win7 CD, and put the system CD into the optical drive. BIOS settingsTurn on the power, and then observe the prompts on the screen. Press "F2" to set the BIOS before starting the system.

5. Download the downloaded CD image file iso to a partition other than disk C, such as downloading it to disk F, right-click to use WinRAR and other tools to decompress to the current folder or designated folder. It cannot be decompressed to C disk and desktop, otherwise it cannot be installed. A pop-up dialog box takes a few minutes to perform the decompression process of the CD image file.