Windows System Fault Emergency Response Guide

Source: Tianji blog

When using computers, friends may encounter many unexpected faults, which may be caused by software or hardware faults, or other factors ...... So, how should we be able to cope with these incidents for Junior computer users? See the following:

Automatic shutdown

Symptom: The system is automatically shut down or restarted when the computer is running normally.

Symptom Analysis: The current motherboard has the CPU temperature monitoring function, once the CPU temperature is too high, 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, power management and virus software in the system can also lead to this phenomenon.

Suggestion: if the above sudden shutdown occurs, first confirm whether the CPU cooling is normal. Enable the chassis to visually check whether the fan blade works normally, and then enter the BIOS option to check the fan speed and CPU operating temperature. If a fan problem is found, perform related Dust Removal maintenance on the fan or change the fan with better quality. If you want to eliminate the hardware cause, go to the system and choose "kiss to death" from the installation disc to overwrite the Installation Power Management, and then thoroughly detect and eliminate the virus. When these factors are eliminated, the fault may be caused by the aging or damage of the power supply. This can be confirmed by replacing the power supply method. If the power supply breaks down, it will change to a new one. Do not continue to use it, hardware will be burned out.

System host

Symptom: The desktop is locked and the mouse cannot be moved. In severe cases, hot boot (Alt + Ctrl + DEL) fails. There is also the blue screen phenomenon.

Symptom Analysis: the cause of this fault is the bug of the "kiss to death" System and the compatibility problem between various software. It may also be that the user runs too much at the same time.Program, Leading to process blocking and triggering the crash.

Countermeasure: when the host is divided into two types: true and false, the easiest way to distinguish between the two is to press the numlock key in the keypad to check whether the indicator lights have changed. Yes, it is false; otherwise, it is true. If you can press Alt + Ctrl + DEL at the same time and select the program name in the displayed task list, then Mark the items with no response, and click end task. Really, only cold start. For the blue screen, after pressing the ESC key is invalid, Select Restart and press the reset key on the chassis panel. For compatibility issues, you can uninstall the "problem" software and update the motherboard BIOS and related motherboard drivers.
Virus attack

Symptoms ......

Symptom Analysis: viruses are essentially malicious computer programs.CodeThe virus uses a large number of copies of itself and operates secretly in the system. It occupies system resources and seriously damages software and hardware, such as CIH and hard disk locks.

Solution: the virus uses anti-virus software. If you suspect that your machine is infected with a virus, restart the system to DoS and run the genuine anti-virus software (DOS version) to kill the virus that cannot be killed by "kiss to death; then, start the system desktop and run the Windows version of anti-virus software for anti-virus. On the other hand, some files may be damaged due to a severe virus attack. Before the virus attack, we back up important files to other drives except drive C and set the attribute of the data file to read-only. At the same time, you need to update the antivirus software virus database and use less pirated discs. Those who have already accessed the Internet do not need to download emails from unknown attachments.

System Faults

Symptom: unable to enter the system. The typical manifestation is that the system passes the self-check upon startup, stops at the startup screen, or displays many prompts such as the disk is error.

Symptom Analysis: this is a system fault, which may be caused by many reasons. A common problem is that the system file is modified, damaged, or an abnormal command line is loaded. In addition, hard disk failure is also one of the reasons.

Countermeasure: First, you must try to enter safe mode. Press F8 at startup and select the third item in the menu: Safe Model (safe mode ). After entering the safe mode, you can use the Device Manager and System File Checker to find the fault. You can identify the current body and determine whether del or set interruption. You can also reinstall the driver. If the system file is damaged, it can be recovered from the installation file (we recommend that you copy the Windows installation disk to the hard disk in advance ). If you cannot connect to the secure mode, you can use a boot disc or a floppy disk to boot to dos. in DOS, the system files in drive C are completely disinfected and Dir is used to check whether the system files in drive C are complete, if necessary, use the system floppy disk to perform sys C: to restore the relevant basic system files. If no file is found in drive C, you must reinstall the system.

Driver loss

Symptom: the device is displayed in 16 colors when it is started, and the device "XXX" is in use when the audio file is stored.

Symptom Analysis: after eliminating the cause of the virus, this phenomenon often occurs on an old machine that has been used for N months, or when the user has recently moved the components in the host (such as the video card and PCI Card ), this may cause poor contact with the hardware, and the system does not thoroughly detect the relevant hardware.

Solution: reinstall the driver of the video card and check whether the related accessories are in full contact with the motherboard. First, ensure that the Gold finger of the video card and sound card are cleaned, the second is to insert it into the relevant slot when the appropriate force, aligned with the vertical insertion, and then connected to the sound box with the display line. If necessary, you can change the slot location of the PCI Card to avoid resource conflicts with the video card.

Black screen

Symptom: The black screen is not displayed, and an alarm may sound.

Symptom Analysis: poor contact between hardware, or hardware failure. The related hardware involves memory, graphics card, CPU, motherboard, power supply, etc. When a computer is powered on, it must first be powered by a power supply, and then self-checked by the BIOS of the motherboard, and then through the CPU, memory, and graphics card. This process is reflected in the screen called self-check. First, the BIOS information of the video card, then the motherboard information, and then the memory, hard disk, and optical drive. If something goes wrong in the middle, the computer will not be able to start normally, or even a black screen.

Countermeasure: First, check whether the external connections and internal connections are smooth. External connections include displays and host power supply. There is a connection between the host power supply and the host Power Supply interface (sometimes poor contact ). The common cause is that the memory of the video card is exposed to dust in the air for a long time due to the usage of the memory. As a result, the oxide layer on the golden finger causes poor contact. In this regard, use cotton to stick a moderate amount of alcohol to wipe the Gold finger back and forth, wait for the dry and insert back. In addition, check whether the CPU is working normally. After the instance is started for about half a minute, manually touch the CPU fan's heat sink to see if the temperature exists. If there is a temperature, the possibility of CPU failure can be basically ruled out. If there is no temperature, sort out the CPU outlet to ensure that the contact is in place. After that, your CPU can be upgraded: (in addition to the above method, there is also a killer: remove the BIOS settings or replace the motherboard CMOS battery using the jumper method. When all these methods have been tried and all fail, you can summon the Great shrimp brother to help you.