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List of contents of this article:

• 1, How to reinstall the system on a laptop with a CD-ROM?
• 2, CD-ROM installation system
• 3, What is the difference between installing the system with a CD-ROM and installing the system with a USB flash drive?
• 4 、Two methods of CD-ROM installation system

How to reinstall the system on a laptop with a CD-ROM?

1. You can follow the steps below to install the system disk and put it into the CD-ROM, 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.

2. Under normal power-on, put the CD into the optical drive and restart the computer (if it is not normal, you can put it in after the power is turned on). 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.

3. There are two ways to install the system on the notebook, one is to install the system CD directly into the laptop, and the other is to copy it to the hard disk. After starting the notebook optical drive, put the CD into the optical drive. Then press F12 to enter the menu and select the next step. After entering, select the [Install from floppy disk] option and click Next.

4. Put the system CD, press F12 or Fn+F12 when restarting the notebook, select the DVD option in the pop-up boot menu, and press the car. Boot into the main menu of the CD-ROM, select [1] to install the system to the first partition. Go to this interface and perform the decompression operation of the system.

5. Transfer some important things in the original system to other disks.CD-ROM starts the computer, inserts the CD-ROM, turns on the computer, and selects from. Notebooks generally have shortcut startup options. Different notebook models have different functions such as f2 or f12 on the keyboard. It's best to check it online.

CD-ROM installation system

Turn on the computer, press the Delete key when the computer self-checks, (Note: Some computers are E Nter and F1 keys).After entering the CMOS interface, select the Startup option with the left and right keys on the keyboard. Select the first PrimaryBootSequence option and press the Enter key on the keyboard.

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.

Download the downloaded CD image file iso to a partition other than disk C, such as downloading it to disk F, right-clicking to use WinRAR and other tools to decompress to the current folder or the specified folder. It cannot be decompressed to disk C 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.

What is the difference between installing the system with a CD-ROM and installing the system with a USB flash drive?

In general, the difference between the USB flash drive and the CD-ROM installation system is roughly the only one, and there is not much difference in the installation speed. In addition, it is not difficult to make and install the system nowadays, and both methods of installing the system can also be seen. It depends on what tools your computer supports and what tools you like to use to install.

The two methods have their own advantages and disadvantages. Installing with a CD-ROM can ensure that the system is booted in a non-toxic environment. As long as there is no virus in the CD-ROM, the installed system must have no virus. Moreover, the CD-ROM boot system also has various options such as anti-virus, partition table repair, re-partition, etc.

Let me tell you clearly that the CD-ROM must be simpler. Set the CD-ROM to start, and put the CD-ROM into the optical drive to enter the installation.The USB flash drive also needs to download the system image first, and then use other auxiliary tools to make the USB flash drive into a boot disk. This process is a little troublesome.

Two methods of CD-ROM installation system

1. If it is the original disk version, the installation method is as follows: the first step is to set up light start: the so-called light start means that the computer first reads the optical drive when starting up, so if the optical drive There is a CD with a light start function that can be read out before the hard disk starts (for example, when installing the system from the CD).

2 and 6 interfaces are divided into two ways, one is to upgrade and install (retain the original system file), and the other is to customize installation (not to retain the original system file). If the original system disk space is not large, it is better to use custom installation.

3. Insert the system CD into the computer optical drive, then press the power button of the computer and click the F12 key continuously. Some laptop models are F12 + FN keys.