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This article mainly shows you "how to deal with common computer failures in win8". The content is simple and clear. I hope it can help you solve your doubts. Let me lead you to study and learn this article "how to deal with common computer failures in win8".

1. Encounter a power outage

Phenomenon: monitors, mainframes, speakers, etc., will be "forcibly shut down" in an instant.

Phenomenon analysis: this is caused by a sudden "power outage". The voltage fluctuation caused by the moment of power outage will impact the chips, circuits, resistors and so on of computer hardware. Once you are reading and writing to the disk when there is a power outage, there may be bad channels, or when you are writing a manuscript, the data will be lost.

What should be done: when equipped with a computer, choose a brand power supply, which can minimize the adverse impact of voltage fluctuations on the hardware. After a power outage, turn off all power supplies to prevent the monitor and part of the ATX power supply from starting at the same time when the next call comes, which will cause bad damage to the hardware. When you edit a document with WORD, use the auto-save feature of WORD. If you happen to be operating on the disk at the moment of the power outage, it is recommended that you do not skip disk detection at startup next time to see if there is any bad path. Once a bad road is found, use NORTON,PQMAGIC and other tool software to repair or shield the bad road. In addition, if you are financially permitted, it is recommended to choose a UPS to provide power-off protection for the computer for a period of time.

2. Automatic shutdown

Phenomenon: the computer suddenly shuts down or restarts the system automatically during normal operation.

Phenomenon analysis: today's motherboard has a temperature monitoring function for CPU. Once the CPU temperature is too high and exceeds the temperature set in the motherboard BIOS, the motherboard will automatically cut off the power supply to protect the relevant hardware. On the other hand, the power management and virus software in the system will also lead to this phenomenon.

What should be done: if the above sudden shutdown phenomenon continues to occur, first confirm whether the heat dissipation of the CPU is normal. Check whether the fan blade is working properly in the boot box, and then enter the BIOS option to see the fan speed and the working temperature of CPU. If it is found that it is the problem of the fan, carry on the related dedusting maintenance of the fan or replace a better quality fan. If you rule out the hardware, enter the system, cover the installation power management from the "Kiss to death" installation CD, and then thoroughly check and kill the virus. When these factors are eliminated, the cause of the failure may be the aging or damage of the power supply, which can be confirmed by replacing the power supply. If the power supply breaks down, it will be replaced with a new one. It must not be used any more and the hardware will be destroyed.

3. System downtime

Phenomenon: the desktop is locked, the mouse can not move, even hot start (ALT+CTRL+DEL) is not allowed in serious cases. And then there is the blue screen phenomenon.

Phenomenon analysis: the BUG of the Windows system and the compatibility between the software are the cause of the failure, or it may be that the user runs too many large programs at the same time, which leads to process blocking and crash.

Countermeasures: when the machine is divided into two kinds, true and fake, the easiest way to distinguish between the two is to press the Numlock key in the keypad area to observe whether the indicator light has changed. If there is, it is false; on the contrary, it is true. If you can press ALT+CTRL+DEL at the same time to select the program name in the task list that appears and mark the items that do not respond, click end the task. Really, only the cold start. For the blue screen, after pressing the ESC key is invalid, select restart and press the reset key on the chassis panel. The compatibility problem can be solved by uninstalling the "problem" software and updating the motherboard BIOS and related motherboard drivers.

4. Virus attack

Phenomena: slow operation of the system, crash, illegal operation, flashing hard disk lights, frequent blue screen, and inexplicable system hints.

Phenomenon analysis: virus is essentially a malicious computer program code, virus through a large number of self-replication, while secretly running in the system, occupy system resources, serious damage to software and hardware, such as CIH, hard disk lock and so on.

Countermeasures: as virtue rises one foot, the devil is one foot low, the nemesis of the virus is antivirus software. Once you suspect that your machine is infected with a virus, please restart the system to DOS and run the genuine antivirus software (DOS version) so that you can kill the virus that cannot be killed under the "kiss to death"; then boot to the system desktop and run the WINDOWS version of the antivirus software to kill the virus again. On the other hand, because some files will be destroyed when the virus is serious, we back up the important files to a drive other than disk C before the virus breaks out, and set the properties of the data files to read-only. At the same time, we should always update the antivirus software virus library, reduce the use of pirated discs, friends who have been online should not download unknown email attachments.

5. System failure

Phenomenon: can not enter the system, the typical performance is to pass the post, stop at the startup screen, or display: The disk is error and many other phenomena with English prompts.

Phenomenon analysis: this is a system failure, which can be caused by many reasons, the more common is that the system file is modified, destroyed, or loaded with abnormal command line. In addition, hard disk failure is also one of the reasons.

What to do: first try whether you can enter safe mode, press F8 to boot, and select the third item in the startup menu: Safe model (safe mode). After entering safe mode, you can find the fault through the device manager and the system file checker. No. Can find out the body and then determine whether the del or setting interrupt. You can also reinstall the driver, and the damaged system files can be recovered from the installation files (it is recommended to copy the WINDOWS installation disk to the hard disk in advance). If you can't even enter the safe mode, boot to DOS with a booted CD or floppy disk, first kill virus under DOS and use Dir to check whether the system files in disk C are complete or not. If necessary, you can use the system floppy disk to perform Sys CDir to restore the relevant basic system files. If no files are found on disk C, the system will have to be completely reinstalled.

6. Driver lost

Phenomenon: 16 colors are displayed when starting up, and the "XXX" device is occupied when playing audio files.

Phenomenon analysis: after excluding the cause of the virus, this phenomenon often occurs on the old machine that has been used for N months, or the user has recently moved the components in the host computer, such as graphics card and PCI card, which may cause poor contact with the hardware. as a result, the relevant hardware has not been thoroughly detected by the system.

The solution: reinstall the driver of the video card and check whether the relevant accessories are in full contact with the motherboard: one is to ensure the cleanliness on the golden fingers of the video card and sound card, and the other is to insert it properly when inserting it into the relevant slots, and then connect to the matching speakers and monitors. If necessary, the slot position of the PCI card can be changed to avoid resource conflict with the graphics card.

7. Boot black screen

Phenomenon: boot black screen, no display, there may be an alarm sound.

Phenomenon analysis: poor contact between hardware, or hardware failure, related hardware involves memory, graphics card, CPU, motherboard, power supply and so on. Computer boot through the power supply, and then by the motherboard BIOS self-test, and then through CPU, memory, graphics card and so on. This process is reflected on the screen called self-test, first through the graphics card BIOS information, then motherboard information, and then memory, hard disk, optical drive and so on. If something goes wrong in the middle of this, the computer will not be able to start normally, or even the black screen.

Countermeasures: first of all, make sure that the external and internal connections are smooth. External connections include monitor, mainframe power supply and so on. There is an internal connection between the mainframe power supply and the mainframe power interface (sometimes poor contact here). The more common reason is: graphics card, memory due to long-term use, long-term contact with the dust in the air, resulting in oxide layer on the gold finger, resulting in poor contact. In this regard, wipe the golden finger back and forth with moderate alcohol on the cotton and insert it back after it dries. In addition, observe whether the CPU is working properly, turn it on for about half a minute, and touch the heat sink of the CPU fan with your hands to see if there is a temperature. If there is a temperature, the possibility of CPU being broken can be basically eliminated. Tidy up the CPU socket without temperature to make sure the contact is in place. After that, there is no temperature, your CPU can be upgraded: (in addition to the above method, there is another must-kill: remove the BIOS setting by unplugging the jumper or replace the CMOS battery on the motherboard. When all these methods have been tried and failed, Brother Shrimp can be summoned to come out to help.

8. Strange sound and strange smell

Phenomenon: hear a strange noise or smell a strange smell.

Phenomenon analysis: strange noise, may be due to the bad path of the hard disk caused by the hard disk (grid shrill sound); it may also be the hard disk, the optical drive screw is not fastened, causing the resonance of the chassis. Peculiar smell, mostly burnt smell, very prickly kind.

The solution: turn off the power first. If there is a strange noise, open the chassis panel and check one by one. If it is bad, repair or shield it. Be careful with odors. At this time, smell with your nose, find the smelly parts, and then unload them to the computer company to deal with, in which everyone must defend their own consumer rights and interests. (those that have not passed the warranty period-- those that should be replaced, those that should be repaired. (this must not be careless.

These are all the contents of this article entitled "how to deal with common computer failures in win8". Thank you for reading! I believe we all have a certain understanding, hope to share the content to help you, if you want to learn more knowledge, welcome to follow the industry information channel!

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