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The computer should first turn on the peripherals (monitor), then turn on the main unit, and turn off the main unit and then the monitor when shutting down.

It should be noted that the display mentioned here should be a CRT monitor, that is, a regular display of the picture tube.

Because this kind of display has a degaussing coil, which is used to eliminate the sudden change of current when switching on and off and the magnetization of the picture tube shadow cover caused by the external magnetic field object and cause color distortion, and the instantaneous current of the degaussing coil is very large, which will cause the instantaneous drop of the external power supply voltage (for example, the indoor lamp is instantly dimmed), if the host is turned on first, the power supply local distribution voltage of the host is jitter during the start-up process, which is not conducive to the operation of some parts of the host (such as hard disks, etc.), and it is easy to cause the level error of the internal circuit. Therefore, you should turn on the monitor first, and then turn on the host when the power supply is stable.

However, the LCD does not have a degaussing coil, and the start-up current is also small, so it will not cause the power supply voltage to be unstable, so the LCD is not in this case.

Windows XP disc initiates the installation process.

1. Preparations:

1.Prepare the Windows XP Professional Chinese Simplified Chinese version installation CD and check whether the optical drive supports auto-start.

2.If possible, scan all drives with a disk scanner to check for drive errors and fix them before running the installer, otherwise it will be troublesome to check for hard drive errors while the installer is running.

3.Record the product key (installation serial number) of the installation file on paper.

4.If possible, use a driver backup tool (e.g., Driver Wizard 2004) to back up all drivers under the original Windows XP to the hard disk (e.g., F:

5.If you want to format the C drive or D drive during the installation process (it is recommended to format the C drive during the installation process), please back up the useful data of the C drive or D drive.

2. Start the system with a CD-ROM

If you already know how to do it, go to the next step), reboot the system and set the optical drive as the first boot disk, save the settings and reboot. Put the XP installation disc into the optical drive and restart the computer. When it is just started, press the enter key quickly when it appears as shown in the figure below, otherwise you will not be able to start the installation of the XP system CD.

Part 3: Install Windows XP Professional

After the disc boots up, the installation screen will appear if there is no accident.

Full Chinese prompt, select automatic installation of Windows, "To install Windows XP now, press Enter", press the Enter key, the license agreement appears, there is no room for choice here, press "F8" after this, use the "down or up" arrow key to select the partition area used to install the system, if you have formatted the C disk please select the C partition, select the partition after pressing the "Enter" key enter, the selected partition can be formatted, thereby converting the file system grid, Or save the existing file system, there are many options, but it should be noted that the NTFS format can save disk space, improve security and reduce disk fragmentation, but there are many problems at the same time, OS and 98 ME can not see the NTFS format partition, here select "Format the disk partition with the FAT file system (fast), press the "Enter" key to enter, the warning of formatting the C drive appears, press the F key will prepare to format the C disk.

Formatting C partition; Only by booting with a disc or installing a boot floppy disk to start the XP installer can the formatting partition option be provided during the installation process; If you use the MS-DOS boot disk to boot into DOS, when you run i386 Winnt to install XP, there is no formatting partition option when installing XP. Once the formatting of the C partition is complete, start copying the files, and after the files are copied, the installer starts initializing the Windows configuration. Then the system will automatically restart after 15 seconds.

After restarting, the following work will be automatically completed by the system disk!

A lot of software to install the system is foolish, and it can be installed by inserting the optical drive and restarting.