Summary of causes of slow computer operation

Cause 1: Virus

The computer is infected with a virus, which slows down the computer. The Mechanism has two mechanisms: first, after viruses invade into the memory, they occupy the data base, and then start to repeatedly replicate themselves in the memory. As it grows, it soon took up a large amount of memory in the system, leading to slow down or even failed to start the program due to the lack of main memory. Second, the virus program forced the CPU to execute useless LJ programs, the system is always busy, which affects normal program running and slows down the computer speed.
Prescription: You can use a later version of antivirus software. Of course, you don't have to worry about installing anti-virus software. Because the new virus is born every day, we also need to pay attention to the frequent upgrade of anti-virus software so as not to miss Jingzhou.


Cause 2: insufficient memory (I believe everyone's memory will not be small)

This can also be divided into two situations:

First, I believe that there is a lack of enough memory. Many friends will say how this is possible. How much memory does my machine have. Next, let's take a look at pⅱ.
266 of instances, the machine uses the popular AGP display card, with 64 MB of SDRAM installed, then how much memory can actually be used? First, the Windows operating system will use about 6 ~ The memory is 10 MB, which is used to store its own modules. The second killer is to count the AGP display card bus. It is true that the use of the AGP display card bus can save a lot of expensive memory, but if you activate the AGP function on a computer with 64 MB memory configured, the system will allocate a 32 MB primary memory (controlled by the system) to the AGP display card. As a result, the system will only have about 20 mb of memory, which will be 3 ~ 5 MB backup to avoid system resource depletion and crash, so what you really have is less than 20 mb of memory space. In addition, the limited space needs to be divided by many background resident programs, such as anti-virus software, super-resolution monitoring programs, and netmeeting. Friends know that even the most common
Wordsoftware also requires a memory of about 16 MB, and 64 MB of memory is not enough when running large software such as 3D Max. In this case, the system automatically uses the hard disk space to virtualize the primary memory for running programs and storing swap files and various temporary files. Because the hard disk is a mechanical structure, and the memory is an electronic structure, the speed of the two is several orders of magnitude. Therefore, using the hard disk to virtualize the main memory will greatly reduce the running speed.


Second, one of the advantages of the Windows operating system is multi-linear and multi-task. The system can use the CPU for time-sharing ** so that you can do many things at the same time. However, there are naturally some advantages and disadvantages. Multi-task ** also puts forward higher requirements for your machine. If you open too many applications at the same time, even if the memory is larger, the system's primary memory will be in a hurry and the system resources will be exhausted, this reduces the program running speed and even causes the system to crash. Take a small computer as an example. When you open about 50 programs at the same time in MB of main memory, you can find that the system resources are already 0 free space, unless you close some applications, otherwise, all ** operations are invalid. Therefore, if you want to run multiple tasks, you have to consider whether the machine level is high enough and the memory is sufficient. Otherwise, the running speed will not be much faster than that of snail scanning.

 
Prescription: there is no way to solve the first problem. Without hardware support, it is just as empty as talking on paper. It is only a little bit of money to expand the memory (remember: Adding 32 MB of memory is far better than increasing the CPU to a higher level ). In the second case, you only need to close some applications.

Cause 3: insufficient hard disk space

One of the disadvantages of using the Windows system platform is that you are not clear about file management. Sometimes you do not know whether the file is useful to the system. Therefore, the number of files in the Windows directory is increasing, the capacity is getting bigger and bigger. In addition, the current software prefers to grow bigger, and some temporary files and swap files generated by the system will all make the hard disk available space smaller. When the available space of the hard disk is small to a certain extent, there will be a lack of available space for the system's swap files and temporary files, reducing the operating efficiency of the system. More importantly, because we frequently store and delete various software on the hard disk, the available space on the hard disk becomes fragmented. Therefore, the system often does not store files in a sequential order, this will cause the system to frequently move the head when storing and reading files, greatly reducing the system operation speed.

 
Prescription: (1) Using FAT32 will greatly reduce disk space usage; (2) Try to delete useless files and programs, it is best to use the anti-installer provided to free up the available space of the hard disk; (3) regularly use the disk management function to sort out the hard disk to reduce file fragments and ensure consistent file storage; (4) recommended regular
Reinstall windows ).
Cause 4: Windows becomes fat

Compared with the dossystem, Windows is too big, and it becomes larger as you ** install new software, load runtime libraries, and add new games ** every day, more importantly, it is not only its directory, but also its registry and Runtime Library. Because even if a program is deleted, the DLL file used by the program still exists. Therefore, as the program is used for a long time, the DLL dynamic link library files to be loaded during Windows Startup and exit become larger and larger, the running speed of natural systems is getting slower and slower.

Prescription: use some programs that completely delete DLL to restore windows to a slim fit. We recommend that you reinstall windows every two months. This is very effective.

Cause 5: hardware not supported

Once upon a time, the computer that made you proud was no longer powerful. It was like a fog in the dark when you watched a sports car that was shining brightly on other machines. There are two reasons: first, the CPU power is not strong enough. Although it does its best, it is often unable to cope with the problem. Who calls this computer so fast? Second, the components are too old. Take 3D games as an example. If your display card is not the latest model, the game mode (such as OpenGL and d3d) is not supported when running such games because of the display card) instead, we had to use software to simulate acceleration, leading to a sudden drop in the speed of the game. Who told me to buy a computer too early?

Prescription: There's no way to do it this time, dude. You'll be ready to handle the problem for this old machine, and save your money and buy a new one!
Cause 6: Improper accessory combination

Some friends often ignore some small things when assembling machines, which leads to improper matching of computer accessories and a speed bottleneck. For example, some friends choose a high CPU grade, but they can use sound cards but have bought ordinary cheap goods. In fact, this is often not worth the candle. In this way, the computer needs to adopt software decoding because the sound card occupies a high CPU resources and its data transmission speed is slow when running a game or playing a video disc, it often causes audible pauses, or even program running intermittently. Another example is that some of my friends' machines are upgraded. In the past, some components on old machines, such as memory stick, were reluctant to be discarded and used on new machines. However, due to the speed limitation of old memory, it is often necessary for new machines to lower the speed to accommodate it, thus reducing the performance of the entire machine and greatly affecting the overall operation speed.

Prescription: find an expert to help you check and replace the card that causes the bottleneck to enjoy excellent overall performance.

Cause 7: hardware drive
Many players are new players who do not know much about hardware drivers and do not know how to install drivers when installing windows. As a result, they can cook dumplings in the teapot without a mouth, the failure to utilize hardware performance greatly wastes resources. We all know that the same hardware with drivers of different versions or drivers of different manufacturers often cause great performance differences, not to mention the absence of drivers. Taking playing a video album as an example, even if you are the most advanced TNT video card, if the driver is not installed, it will not use any acceleration function of the display card when playing a video disc, instead of using software to simulate acceleration, the effect is naturally terrible.

Prescription: the solution is to install a random driver. We recommend that you find the latest D Drive or pull the latest driver online to comprehensively improve the performance of your machine.