Introduced in front of computer failure is divided into two categories, namely, “hard failure” and “soft failure” to learn the “hard failure” of the basic diagnosis and treatment, the next will learn “soft failure” of the basic diagnostic and treatment .

Software failure occurs, mainly due to software errors, improper operation of the user, system configuration errors caused by incorrect parameters. Software failure mainly in the software installation, commissioning, operation, maintenance failure, failure generally affect the use of a single software, can lead to serious crashes, the majority of software failures can all be repaired, generally not damage to the hardware device.

1.5.1 Software fault diagnosis based on knowledge

All computers in the event of failure, the vast majority of failures are “soft fault”, for computer beginners speaking, only through a number of targeted learning and training, can grasp in a short time a number of software failures diagnosis and exclusion of basic skills.

1. The performance characteristics of software failure

Software failure, compared with the hardware failures, software failures can generally be easier to fix or repair, software failure have the following characteristics:

(1) functional error: is the software problem and the board will not lead to host various components PCGA-BP2E battery of physical damage, but due to functional errors cause the system to loss of function. Therefore, the correct diagnoses in the future, simply set correctly, adjust the return to normal.

(2) hidden: a software fault which appears mostly in the operating system, software failure occurs will result in many beginners no start. In fact, not difficult to solve a software problem, as long as the right medicine, will soon be prescribing the medicine.

(3) Random: software fault has generated more random, no clear rules, such as software failure caused by misuse is fleeting, very short duration.

(4) Recoverability: This is the biggest difference with the hardware failure, software failure can be restored, sometimes you can just restart your computer back to normal, also when you need to install or configure the software to return to normal.

2 reasons for software failure occurs ..

There are many reasons for software failure, common files are missing, the file version does not match, memory conflict, memory exhaustion, resource conflicts, viruses and destruction. The most common is the virus destroyed, as the virus causes most of the software failure can not re-install the operating system under the premise solution, if the system file is damaged, while others need to reinstall the operating system can be completely resolved.

Detailed explanation of the causes of

(1) the occurrence of the virus destroyed the vast majority of software failures caused by virus attack, because the virus destroyed files, thus resulting in error or not run. To resolve this type of software failure, the need for systematic and comprehensive anti-virus.

(2) start the operating system file is missing or applications, the need to use a lot of files, such as various virtual program. Close association with the application of dynamic link libraries, etc., if these files are accidentally deleted or damaged other causes, related equipment and procedures can not work or does not work.

(3) file version does not match the variety of applications install when the application program to the system, Fu Zhi Hui series of new Wen Jian or Genghuan now document which could lead to new and existing software, not software compatibility. Install new software and install the upgrade file, copied to the A1278 battery system in the majority of files are files, but files can not be compatible with existing software is to produce most of the main reasons for the illegal operation.

(4) resource conflicts are now more and more computer peripherals, more and more external devices can often cause the computer system resources reduced, leading to the phenomenon of resource conflicts occur. Resource conflict occurs, the light may cause the sound card, network card. Graphics. Printers and other equipment does not work, serious cases can cause the computer does not start, or crashes during the operation.

3, software fault diagnosis of ideas

To master the software, troubleshooting method, both need to understand computer hardware, system software and they need to be familiar with the relationship between application software. Although the reasons for software failure produced a lot, but some of the time of diagnosis can also follow the organization of writing. Failure in the diagnostic software can generally refer to the following method step by step:

Step diagnostic idea

1: Current computer work calm and observe the situation, for example to see if there are error messages displayed, whether a procedure is hard to read, whether abnormal noise, etc., which have preliminarily determine fault components.

Second: If the fault belongs to the software, to further confirm what the current environment in which software is running, run the system software or run other applications.

3: repeatedly tested to verify that the failure was inevitable or accidental, and caused a failure to fully pay attention to the environment and conditions.

4: COMS parameter settings carefully examined whether the requirements of the hardware configuration, hardware drivers installed correctly, the hardware resources, the existence of conflict.

5: detailed understanding of the system software version with the application of the match.

6: full points off the failure phenomenon occurs with the virus, killing the Dell mini 12 battery virus in time.

4. How to prevent the occurrence of the software so Chen

Software fault with the hardware failures, as many are preventable, the use of the software should try to do the following:

Notes

-: A new software is installed before you fully examine the compatibility of the software and systems.

2: a new software is installed before the installation of the software should be called good antivirus program operations, to ensure that newly installed software does not carry the virus.

3: in case of illegal operations and blue screen prompts carefully analyzed, according to the information to find fault because of its exclusion.

4: If you feel something wrong, he should observe the system resources occupancy, ferret out suspicious process.

5: When you delete an application, as far as possible to use the program’s uninstaller pulling load or unload from the control panel, should not manually delete the program files.