Computers often crash at random, which is very common, but it is more troublesome to maintain because of its wide coverage. Now I will explain it in detail step by step.

1, the virus caused the computer to crash frequently. This kind of failure is common. When a computer is infected with a virus, it is mainly manifested in the following aspects: ① the system startup time is prolonged; ② Automatically start some unnecessary programs when the system starts; ③ Crash for no reason ④ Some garbled words appeared on the screen. Its manifestations emerge one after another, and it is introduced here for reasons of space. What needs to be mentioned here is that if the system works unsteadily because some system files are destroyed by viruses, we can use the system file checker to repair the system files in safe mode.

2. Due to the poor thermal stability of some components, this kind of fault will occur (specifically in CPU, power supply, memory stick and motherboard). We can let the computer run for a period of time, and then touch the components on it with our hands after the computer crashes. If the temperature is too high, there may be something wrong with this part, and we can diagnose it by replacing it. It is worth noting that when installing CPU fans, it is best to apply some heat-dissipating silicone grease, but it is difficult to see it on some assembled computers. Practice has proved that silicone grease can reduce the temperature by about 5- 10 degrees, especially on P ⅲ computer. If you don't apply heat-dissipating silicone grease, the computer can't work normally at all. I have encountered such a phenomenon once.

The main configuration of this machine is as follows: Pan Ying 8 15EP motherboard, p3733cpu, 133 external frequency 128M memory stick. After the machine is assembled, it crashes frequently, and even the Windows system can't be installed normally. However, after replacing the CPU of Celeron 533, troubleshooting was carried out. It was suspected that there was a problem with the motherboard or CPU, but the motherboard and CPU of the same model were replaced. Later, because the temperature was found to be too high, some heat dissipation silicone grease was coated on the CPU, and the fault was completely solved.

Practice has proved that CPU above Celeron 533 must be coated with heat dissipation silicone grease, otherwise it is very likely to cause a crash. It is common that computers often crash because of poor contact of various components, especially computers that have been bought for a period of time.

Because most parts are touched by gold fingers, after a period of time, the gold fingers will be oxidized. Every time you pull out a card, you will find that the golden finger has turned yellow. At this time, we can use an eraser to wipe the yellow part back and forth to clean it. Due to incompatible hardware, the computer often crashes. This phenomenon is common in that the graphics card is not compatible with other components or the memory stick is not compatible with the motherboard, such as SIS graphics card. Of course, other devices may not be compatible. To this end, you can get rid of modems, sound cards and other unnecessary equipment for judgment.

5. The software crash caused by conflict or damage usually occurs at the same point, and this problem can be solved by removing the software. Fourth, the computer appears * when Windows starts the system.

Unable to find Vxd or other files, press any key to continue the fault. This kind of fault is generally caused by the incomplete deletion when the user uninstalls the software or the incorrect installation of the driver when installing the hardware. In this regard, we can enter the registry management program and use its search function to delete and solve the files that are not found in the registry. 5. When 5.Windows boots to the login dialog box in normal mode, there is no icon on the desktop after clicking "Cancel" or "OK", and no operation can be performed.

This kind of fault is generally due to improper user operation, resulting in system damage. The solution is as follows: First, we start the system in safe mode, enter the control panel, enter the password option, set the user profile to "This desktop user uses the same desktop and preferences", then enter the network, delete everything except the dial-up network card, log it in to Windows, and then restart the computer to solve the problem.

6. Under Windows, when the computer is turned off, it will be restarted. I read an article in the computer newspaper recently, and the solution is to clean the hard disk or reinstall Windows. In fact, this kind of failure is generally due to the user's carelessness or using some software to set up the system and using the quick shutdown function of Windows system, which leads to the failure. The solution is as follows: Click Start-Run -MSConfig, then select Advanced in the system configuration utility panel, select "Disable Fast Shutdown" to solve the problem and restart the computer. Seven, the Chinese characters in Windows are lost. After installing Windows in the computer, install other software. When sorting out the hard disk fragments, the system prompts: "There is an error in the hard disk fragments."

After being repaired with SCANDISK, the fragment truth cannot be used. When I entered the Windows attachment again, I found that the Chinese characters in it were missing. Check that there is no virus, and then check SCANDIDSK.

Log file, prompt: "Folder C:\WINDOWS is corrupted ...". According to the above-mentioned fault phenomena, Chinese characters appear garbled in the Chinese window, which is mostly caused by the loss of Chinese characters displayed in the registry.

At this point, open the registry editor (WINDOWS\REGEDIT. EXE), and then open two lines of keywords "associated default font" and "associated character set". If yes, open these two lines of keywords to see the content.

When there is only one line of "default" and nothing else, it means that the relevant Chinese character display cannot be defined, which is the reason for the appearance of garbled Chinese characters. Manual repair can be used.

(1) Click Start and select Run. (2) In the Run dialog box, type regedit and click OK to open the Registry Editor.

(3) Expand "My Computer \ HKEY—LWCAL—Machine \ System \ Current Control Set \ Control Font Assoc" to see if there is an "Aossiated Char Set folder icon" under it. In the right column of the window, the following contents will be added: ansi (00) "yes" GB 2312 (86) "yes" WEM (ff) "yes" symbol (02) "on ". Add it as follows: In the Edit New menu, click "String Value", and then type ansi (00) in the text box that appears in the right column.

2. What if the computer suddenly gets stuck?

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Please analyze and solve it from the following aspects.

1 Computer poisoning or malicious software may also cause computer abnormality. The solution is to upgrade the antivirus software, and if it really doesn't work, reinstall or restore the system. Reinstalling or restoring the system can completely solve the software problem.

2 unreasonable and uncoordinated configuration and incorrect bios settings can also cause computer anomalies, so it is necessary to find more professional personnel to install or upgrade hardware. I can send the configuration down to help you see if it is reasonable.

3. Too high operating temperature of the computer will also cause the computer to be abnormal. It is suggested to use Master Lu's software to measure the temperature of various hardware before solving it.

Due to the unstable voltage and insufficient power supply, the computer will often be abnormal. If these reasons are caused, configure a voltage regulator and switch to high-power power supply.

5 is caused by running large-scale software and programs, such as playing large-scale games, using large-scale software and watching Blu-ray movies. It should be caused by poor computer hardware configuration. The only solution is to upgrade the computer configuration and optimize the computer system.

Because there is too much dust in the old computer case, it is easy to cause computer abnormality due to short circuit. Please be sure to clean the dust inside the chassis.

The old computer has been used for a long time, and the capacitance of the motherboard circuit is aging, which will also lead to abnormal problems in the computer. Only sent for repair or replacement.

The hard disk of an old computer will break down after being used for a long time, causing the computer to crash. This requires hard disk testing software to test the hard disk, and the logical bad track of the hard disk can be repaired by repartitioning and installing the system. If it can't be repaired, the hard disk will have to be replaced.

3. What if the computer suddenly gets stuck?

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In this case, if the computer has neither sound nor response, you can use the computer task manager to manage the program, and press "ctrl+alt+delete" to pop up the window of the task manager.

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In the pop-up window of Task Manager, many running programs and their running status will be displayed. As shown in the figure, the running status will be displayed at the back of each running program, and some programs will be displayed as "no response" when the computer card is suddenly running.

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As long as you complete the task with running software in a "unresponsive" state, or stop all running software and buy your computer, you will immediately respond and stop the card.

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Sometimes the computer is so jammed that even the task manager can't be opened. At this time, you only need to cut off the power directly or let the computer run on its own for a long time, so it won't get stuck so slowly. This kind of problem often occurs, and it is necessary to carry out slimming treatment such as software deletion to improve the running speed of the computer.

4. What if the computer suddenly crashes?

You can turn it off by pressing the on-off key when you turn it on. If it crashes frequently, look below.

Is it stuck, dead or slow? What did you do before you collapsed or became unresponsive? What software plug-ins or patches have you downloaded? Has the hardware been upgraded? (If the software is downloaded or patched before the card, try to uninstall it all. ) Could you please explain it in detail? If you have any questions, ask me. The simple method is to be soft first and then hard. Download Win Cleaning Assistant to kill Trojans, restore the system or reinstall, but still can't check whether it is caused by hardware problems.

1, antivirus software is installed, and all monitoring is turned on. If monitoring is turned on less or not, viruses will often be killed. 2. The software or driver is incompatible with the system. Please reinstall or upgrade the driver.

3, system problems or Trojans, killing Trojans to restore the system or reinstall (download Win cleaning assistant to kill Trojans). 4. Unstable memory, graphics card and voltage will also lead to crash (if the memory is too small, upgrade the memory).

5. Common hardware such as 5.CPU or graphics card is too high, which is most likely to cause card and crash. 6. If the hard disk has a bad track, use software to repair the bad track, format the hard disk partition and reinstall it, and change the hard disk.

7. Upgrading hardware will lead to incompatible crashes. 8. There are too many junk files and too many disk fragments.

9. If it doesn't work all the time, it is recommended to carry out an overhaul. Use the method of system restore that comes with the system: system restore that comes with the system: Start/Program/Accessories/System Tools/System Restore, click Restore my computer to an earlier time, and click Next, and you will see a dark date on the date page, which is the restore point. After selecting, click Next to restore the system (Win7).

5. What if the computer crashes?

1. Make sure the Bios settings are correct. The settings in the Bios must be appropriate, and the wrong Bios settings will make you crash when running Windows. 2. Always check the contact of computer accessories. Running under the condition of poor contact of the board will lead to system collapse, so when replacing computer accessories, the board must be fully contacted with the motherboard. 3. Clean the chassis regularly. Too much dust will cause poor contact between boards, leading to system crash during operation, so clean the chassis at any time, and don't accumulate too much dust in the chassis. 4. Insist on seriously killing viruses. Don't use CDs or floppy disks of unknown origin easily. Before opening them, check the attachments in the mail with antivirus software. 5. Shut down the machine according to the correct operation sequence. Don't turn off the power before the normal operation of the application software, otherwise the system files will be damaged or lost, which will lead to the crash at startup or runtime. 6. Avoid multitasking. Don't run other software when defragmenting the disk or checking the hard disk with antivirus software, otherwise it will cause a crash. 7. Don't be too innovative. Drivers of all kinds of hardware don't need to be updated at any time, because newly developed drivers often contain bugs, which will cause damage to the system and lead to system crash. The latest driver is not necessarily the best. 8. When uninstalling the software, please use the self-contained anti-installation program or the installation/uninstallation method in Windows. Do not delete the program folder directly, because some files may be shared by other programs. Once these files are deleted, the application software will be unusable and crash. 9. When setting up hardware devices, it is best to check whether there is a reserved interrupt (IRQ), and don't let other devices use this interrupt number, so as to avoid interrupt conflict and system crash. 10. When surfing the Internet, don't open too many browser windows, otherwise the system resources will be insufficient and the system will crash. 1 1. If your machine's memory is not very large, don't run a program that takes up a lot of memory, such as Photoshop, or it will crash easily. 12. For system files or important files, it is best to use implicit attributes to avoid the system crash caused by deleting these files by mistake. 13. When modifying the master boot record of the hard disk, it is best to save the original record first to prevent the original boot record from being restored due to the failure of modification. 14. General CPU, graphics card and other accessories should not be overclocked. If overclocking is really needed, pay attention to the board temperature after overclocking. If CPU, graphics card and other accessories work at abnormal frequency and temperature for a long time, they will automatically restart or crash, and in severe cases, they will burn out CPU, graphics card and motherboard. Talk about how to effectively reduce computer crashes; Computer crash is a headache for all computer enthusiasts. The frequent blue screen, frequent crash and restart of the computer are really annoying. Moreover, the hardware loss caused by frequent computer restart is several times larger than that caused by normal operation, which undoubtedly greatly increases the probability of hardware damage.

However, computers using Windows 9X operating system will inevitably crash, which is caused by the instability of the core of Windows 9X operating system.

6. What if the computer suddenly crashes?

There are many reasons for this phenomenon (user configuration is of course very important); However, the following aspects are also the root causes of this phenomenon. This problem is the result of your passivity. It is better to take the initiative to reduce the existence of problems as soon as possible. You might as well check it carefully according to the following aspects, that is, clear the road of each equipment, and the road will be smooth = your problem will be solved.

Copyright statement: this answer is "harmony" original, and no one can steal it! One: grounding: grounding is mainly to ensure the safety of people and equipment! Grounding is the most basic requirement, especially for analog devices and digital circuits. Grounding can reduce or eliminate interference from all sides, external interference and inter-line coupling between local and local wiring. Do a good job in grounding shielding of equipment. A lot of interference comes from poor shielding and grounding. Many people only do software, and many interferences are caused by poor grounding or no grounding. This kind of fault is very easy to happen and is easily overlooked by many people. Many equipment damages are directly related to grounding. Ungrounding or poor grounding will lead to intersymbol interference, error code, delay, packet loss, interruption, disconnection (disconnection, interruption), crash, jamming, automatic shutdown, repeated startup, repeated restart (or repeated connection) and other phenomena. Grounding must have more than two grounding electrodes, and the interval between each grounding electrode should be at least10m. There should be no joint between the grounding electrode and the grounding wire of the machine room. Soft copper wire with a cross section of not less than 25mm2 should be introduced into the bus bar of the machine room (no joint is allowed in the middle). The grounding wire should be symmetrically connected with Faraday net to facilitate shunt and scattering. The connection point with the bus should be coated with silver powder conductive paste, and the cross section of the grounding wire from each device to the bus (independent) should not be less than 4m2.

Check with grounding instruments at least twice a year (above grade 2.5, during the inspection period). When checking the grounding electrode, it is strictly prohibited to do it in thunderstorm weather.

It is forbidden to use the "N" zero line of water pipes and power lines as grounding; I.e. an independent grounding device. The wires of each equipment are independently connected to the bus bar of the machine room, and it is forbidden to connect the bus bar after series connection.

Second, wiring: the wiring process is based on the principle of minimum interference; Wiring should be neat and beautiful, strong and weak signals should be separated, and high and low frequency signals should be separated. Improper wiring causes interference such as line coupling and crosstalk, and the line cannot be wound. It is best to use shielded wire (the shielding layer is reliable and grounded). These parasitic interferences will reduce the signal-to-noise ratio of the computer, making it unable to identify useful signals, leading to intersymbol interference, error code, delay, packet loss, discontinuity, dropped line (short line or interrupt) and crash. 3. Signal-to-clutter ratio: (Signal-to-noise ratio can be understood as signal purity) When the signal is small, the useful signal is covered by noisy stray signals (especially intersymbol interference between symbols), which makes the receiving path unable to correctly extract the useful signal from the noisy signal, and the decision circuit cannot correctly judge the symbols, which will lead to error code and serious error code loss, which is the reason for the delay. Serious delay will mean disconnection (which will cause slowness, delay, repeated startup, disconnection, delay, disconnection, interruption, disconnection, automatic shutdown, collapse, etc.). ). Use a noise meter or level meter to measure whether the noise level is within the allowable range, or use an oscilloscope to observe whether there are stray signals? Is there intersymbol interference? Take measures to eliminate.

Signal-to-clutter ratio is also greater than 60dB. Four: Matching: Matching includes level matching and impedance matching. 4. 1 level matching: the received signal cannot be too low. If it is too low, it will not reach the threshold level amplitude required by the receiving path, and the equipment will not work normally; If the level is too high, the front-end circuit of the receiving path will be saturated or burned out.

The fluctuation of reception level near the reception threshold will make the computer restart frequently and repeatedly; Therefore, receiving level adjustment is very important. During the operation, the liquid level gauge or oscilloscope should be often used to monitor and adjust the receiving level at the joint within an appropriate amplitude range.

4.2: Impedance matching: The connection point must match the relative impedance. The mismatch of input and output impedance will lead to reflection attenuation, and the signal will not work normally no matter how strong it is. V: Temperature, humidity and temperature rise (the temperature rises gradually after startup) * * With the extension of startup time, the temperature of the main equipment and its auxiliary equipment (cats, routers, network switches, etc.). ) will gradually rise, and if it cannot be released quickly, it will delay-slow-disconnect-collapse.

Humidity: In rainy season or rainy day and its high humidity area, the insulation between lines and equipment is reduced, and the signal level is reduced, resulting in intersymbol interference, error code, delay, packet loss, interruption, disconnection (short line or interruption), crash, automatic shutdown, repeated startup (repeated connection) and other phenomena, or unstable work. Humidity will accelerate oxidation, resulting in transmission interruption.

Temperature (especially in summer, the temperature is high during the day and low at night): Since the computer is started, the ambient temperature has gradually increased. When the temperature rises to a certain extent, it will stabilize at this value. The difference between this value and the ambient temperature should not be greater than 25 degrees. As the computer is a semiconductor device, the actual temperature of the device is required to be no higher than 85 degrees. When the chip temperature is close to 80 degrees, measures should be taken to reduce the working environment temperature of cats, routers, network switches and computer equipment. If it is beyond this range, the computer will appear inter-symbol interference, error code, delay, packet loss, interruption, disconnection (disconnection or interruption), crash, automatic shutdown, repeated startup (frequent connection) and so on.

The temperature rise (the difference between the actual temperature of the equipment and the ambient temperature is called temperature rise) is less than 25 degrees Celsius, which has a great influence on the normal operation of the equipment, especially when the temperature rise of network switches, routers, computer motherboard chips, network cards, etc. is large, the equipment will not run; Especially for portable (also called notebook) computers, because the design gives priority to size, the temperature rise is difficult to dissipate, and the phenomena such as intersymbol interference, error code, delay, packet loss, interruption, disconnection (short line or interruption), crash, automatic shutdown and repeated startup (repeated connection) caused by temperature rise are most likely to occur. The measures are as follows: 5. 1: amplifier (reference: Hubble, Hubble.

7. What if the computer suddenly crashes?

Computer crash is one of the most common problems when using computers.

In fact, collapse can be avoided in many cases. Here are some tips.

Tip 1: Clean Dust If the computer itself does not dissipate heat well, the whole system will be unstable because the heat generated by itself is higher than the working allowable range. Therefore, it is recommended that you clean the dust inside the computer once every three months to keep it in a good heat dissipation state and avoid the instability of the computer system caused by overheating.

Tip 2: When the application software with reserved hard disk space is executed, it will occupy a part of hard disk space for data exchange, which is the virtual memory of XP operating system. Therefore, no matter how much memory your computer has, you should keep the remaining space on your hard disk above 100MB.

Tip 3: Regular maintenance of the system hard disk is the most important storage device in the computer. In addition to storing the operating system and application software to be executed, it also stores all kinds of documents and materials that you have worked hard to build. Therefore, we recommend that you carry out system maintenance on your computer every other month.

Tip 4: After the computer is infected with the virus at any time, the virus will stay in the memory, infect the files in the memory, and occupy the system resources, resulting in a serious shortage of resources and a crash. When the virus breaks out, it may also make Windows unable to enter, the hard disk data is destroyed, and even the computer cannot be started.

Therefore, it is very necessary to often start the computer with the startup disk of anti-virus software and scan all the files in the hard disk. After downloading files from the network, you should also kill viruses in time.

Tip 5: Hide system files For system files, it is best to use hidden attributes to avoid deleting or overwriting these files due to misoperation, which will cause the program to fail to run or crash. In addition, sometimes operational errors can also lead to crashes, so we should also pay attention to the following points: Don't close the application software when it doesn't end normally, otherwise it may cause damage to the system files, leading to crashes at the next run or startup.

When you are prompted whether to overwrite the file when installing the application software, it is best not to overwrite it. Generally, system files are the best. When uninstalling files, do not delete * * * files.

Some files may be used by the system or other programs. Once these files are deleted, the application software will fail to start and crash, or the system will crash. Shut down the system after the normal end.

Some hard disks shut down when reading and writing data, which makes the computer unable to start. At this time, you can take this hard disk to another machine to start it and get it back. The virus infection caused by software will reduce the working efficiency of the computer sharply, leading to frequent crashes.

At this time, you need to use anti-virus software such as KV300, Kingsoft Internet Security and Rising. Conduct comprehensive virus detection and anti-virus, and regularly upgrade anti-virus software. Improper setting of CMOS is a common fault phenomenon, such as improper setting of hard disk parameters, improper setting of mode and improper setting of memory parameters, which causes the computer to fail to start.

If the memory without ECC function is set to have ECC function, it will crash due to memory error. Miscellaneous deletion of system files Because Windows9x needs mand, Io.sys, Msdos.sys and other files, if these files are damaged or deleted by mistake, even if all kinds of hardware in CMOS are set correctly, it will not help.

Solution: Use the startup disk of the same version of the operating system to start the computer, and then type "SYSC:" to retransmit the system files. Initialization file is corrupted. Because Windows9x needs to read System.ini, Win.ini and registry files, if there are Config.sys and Autoexec.bat files, they will also be read.

As long as these files have error information, they may crash, especially the four files of System.ini, Win.ini, User.dat and System.dat are particularly important. The dynamic link library file (DLL) is missing. Another file is also very important in the Windows operating system. This is a DLL file with an extension. These files are essentially * * * files, which means that a DLL file may need multiple software calls at runtime.

If we delete an application, the anti-installation program of the software will record the files it has installed and prepare to delete them one by one. At this time, the deleted dynamic link library file is easy to be used by other software at the same time. If the missing link library file is an important core link file, the system will crash or even crash. We can use tools such as "Super Rabbit" to delete useless DLL files, which will avoid accidental deletion.

8. Why did the computer suddenly get stuck?

Analysis of reasons: There are four main reasons for sudden jamming:

The first reason: there is a virus in the computer, which causes the CPU and memory to occupy more than 90%, or 100%. The computer started fine, but it will be stuck after a while. This is caused by: Jane completely formats and reloads the system.

The second reason is that your computer has not been cleaned for a long time, and there is too much dust, which leads to mutual conduction of static electricity and short circuit of components inside, so there will be sudden jamming, so Jane, clean up the dust of the host.

The third reason: the CPU fan does not turn, and the CPU radiator falls off, resulting in the CPU temperature being too high and not cooling down. When the temperature reaches the set temperature of the motherboard, the computer will be stuck, and it will crash after a while, so Jane, clean up the dust of the CPU fan, or replace the fan and reinstall the clip of the CPU radiator.

The fourth reason is that your hard disk has a bad track. Hard disk will get stuck when reading bad tracks. When it doesn't read, it will get stuck. So as soon as Jane checks and repairs with HDD, she can also check and repair with DiskGenius. If you can enter the system, it is sometimes used: enter "chkdsk /r" in "Run" to check and repair disk errors, or you can repair them.

I hope it helps you, and I wish you success and happiness ~ ~