I met a lot of friends, or relatives, netizens, their own computer, when they encounter problems, they are free to find someone to borrow a system installation CD to reinstall the system themselves, but The following problems will come. I will pay attention to the following points and install the system: 1. Graphics driver: After the graphics card driver is installed, the refresh rate of the monitor is not adjusted, so that the monitor works at the default refresh rate of 60HZ. Long-term use can make people dizzy, eyes soar, vision loss, etc. So, please don't forget to adjust the display refresh rate after installing the graphics card driver, generally 15 inch CRT is adjusted to 800X600 75~85HZ, 17-inch CRT is 1024X768 75~85HZ, when the display is adjusted to above 75HZ, the eyes are almost unaware that the display is flickering. However, please do not arbitrarily adjust the display refresh rate to above 85HZ, if your monitor performance is normal, it is easy to burn the picture tube. Therefore, it is best to install the monitor driver again. If it is an LCD display, do not exceed 75HZ. Because the LCD and CRT are imaged differently, the CRT does not refresh the picture to make the display appear, and the LCD can change the illuminating particles to make the picture in the display move. The refresh rate has no effect on the LCD display, and it does not cause fatigue. 2, sound card driver: Many computers now use the AC97 specification integrated sound card. However, some motherboard drivers are not enough, and users need to manually install the sound card driver. Many friends don't know which one to install on the CD. You can right-click on my computer - Properties - Hardware - Device Manager - Sound, Video and Gaming Devices, select Update Driver - from list or specified range, select range It is an optical drive: you can specify the dirver-sound folder on the CD, which is higher than the success rate and correctness of the automatic search driver installation. 3. Check if the hardware driver of the computer is all installed, or if it is installed correctly. You can right-click on my computer-attribute-hardware-device manager to see if all the hardware of the computer is installed in place. If there is a problem, there will be a yellow question mark or exclamation mark in front of the device. 4, after the operating system and hardware drivers are installed, please do not let the computer connect to the network immediately! ! FTTB users should be able to unplug the FTTB line when reinstalling the system! Because FTTB does not require dial-up software to allow the computer to automatically connect to the network, this will make the newly installed system re-infected with the virus! This reinstalled system will be abandoned! Therefore, after reinstalling the operating system, please install the firewall and anti-virus software, then let the computer connect to the network. Once the computer is connected to the network, immediately upgrade the firewall and anti-virus software, download the latest virus database file, and make your new installation. The operating system can be protected. XP, 2000 users, please do not open the IE browser when the anti-virus software is not upgraded, this will infect both the shock wave and the shock wave. You certainly don't want the computer to just install the system and the boring system automatically shuts down. Timed dialog box ~ Oh ~ 5, if the system is infected with a virus, it is best not to format the C drive, because the virus may also exist in other partitions of the hard disk, if so, you only format the C drive, press install System, the new system in the C drive is likely to be infected again by the virus in other partitions of the hard disk, causing the system to crash again (such a problem I have encountered -_-#). So if you are not sure which virus is in your computer, it is best to format it completely to ensure the security of the newly installed system. Of course, this is only my personal opinion. Whose computer will have some "important" files~ It’s easy to get rid of it.) I am working on IT. Repairing the computer is also part of my work. Let me talk about how I installed it. XP operating system, for your reference: 1. Turn on the computer, see the prompt to press DEL to enter the computer CMOS settings, according to the motherboard BiOS, generally choose to enter Advanced CMOS Features, then select The First BOOT Dirver, set to CD-ROM, then Press ESC to exit and select Save & Exit Saving to save the COMS settings. The purpose of this is to get the computer started by the CD-ROM drive. If it is the original motherboard of Intel, you should set the boot order to: CD-ROM, C, F. 2. Install XP to the C drive according to the prompts. 3. Install the drivers for the computer hardware, then right-click on My Computer - Properties - System Restore to close it, which wastes hard disk space and system resources. If you are installing SP1 XP system, if you are not sure to upgrade SP1 to SP2, then it is best to turn off the system automatic update, otherwise there will be trouble to activate the system 4. Adjust the resolution and refresh rate of the display, if The computer uses NVIDIA graphics card, enter the NVIDIA graphics card driver graphics settings, turn off the vertical synchronization, so when playing the game, if your computer performance is good, the graphics card driver will not limit your game detection, and Select the overclocking refresh rate, select the refresh rate of 75~85HZ according to the resolution setting of the individual playing game, so that when you enter the full screen game, the refresh rate will not change to 60HZ. 5.IE settings. Enter the internet option, select Settings, and pull the used disk space to 1M, because nowadays computers use broadband to connect to the network, and the web page is automatically updated every time, so no more space is needed to save the old web pages. 6. Install common software 7. Upgrade anti-virus software, then open IE, try to check if the computer is online. 8. After all the software is installed correctly, make a C disk ghost file saved in the last hard disk partition, and then encounter the system crash, just use Ghost to restore the C drive. As mentioned above, reinstalling the system is not so simple or so easy. I hope that the ones I wrote can be helpful to all the friends who are ready to reinstall the system. If there is any error in the text, please refer to the master. Learn from each other.