I. Software 1. Setting up virtual memory There is a very large data exchange file in the hard disk, which is temporarily stored by the system for virtual memory. Many applications are often used, so the system needs to access a large amount of data to main memory frequently, so the speed of accessing this file constitutes a very important factor affecting the speed of the computer! Generally, the default of Windows is that the virtual memory is managed by the system itself, and the size of the swap file will be automatically adjusted according to the needs of different programs, but such enlargement and reduction will bring extra burden to the system and slow down the operation of the system! In view of this, it is best for users to customize the minimum and maximum values of virtual memory to avoid frequent size changes. To set up virtual memory, right-click My Computer and select Properties. In the advanced options of the Efficiency dialog box, set the virtual memory. 3. Check the application software or drivers. Some programs will slow down the computer system when they are started. If this is the reason, you can start with "safe mode". Because this is the initial startup, Safe Mode is slower than normal operation. However, if you start in "safe mode", you find that the computer starts faster than normal, which may be the reason why a program causes the system to start slowly. 4. Too many desktop icons will cause trouble, and too many desktop icons will also slow down the system startup. Every time Windows starts and displays the desktop, it needs to find the icons of desktop shortcuts one by one and load them. The more icons, the more time it takes. At the same time, some anti-virus software provides system startup scanning function, which will consume a lot of time. In fact, if you have turned on the real-time monitoring function of antivirus software, the scanning system will be a bit redundant when starting, so it is better to disable this function! I suggest that you put the uncommon desktop icons in a special folder or simply delete them! 5.ADSL causes the system to start slowly. By default, Windows XP will perform a self-test on network devices such as network cards at startup. If the IP address of the network card is found to be incorrectly configured, it will be set, which may be the real reason for the slow system startup. At this time, we can open the "Local Area Connection" property menu, and double-click "Internet Protocol" in the "General" item to open the "TCP/IP Properties" menu. Configure the IP address of the network card to a value that has not been used by the public network (the default gateway is 192. 168. 1), such as192.1. X, where x is a value between 2 and 255. 6. Influence of fonts on speed Although Microsoft claims that the Windows operating system can install 1000 ~ 1500 fonts, in fact, when you install more than 500 fonts, there will be problems such as fonts disappearing from the font list of application programs and the rapid decline of Windows startup speed. It is suggested to delete unused or commonly used fonts. In order to avoid accidents after deletion, you can make necessary backups first. 7. Delete the random startup program What is a random startup program? A random boot program is a program that is loaded at boot time. Random startup program will not only slow down the startup speed, but also consume computer resources and memory faster. Generally speaking, if you want to delete random startup programs, you can delete them in the startup list, but if you want to be more detailed, such as QQ, popkiller and other software, you can't delete them in the startup list. You should go to accessory applications, system tools, and then. Press Tools in the toolbar above, and then press System Configuration Editor. After entering, in the "startup" dialog box, the random startup program loaded when starting the computer will be listed in detail! XP system, or you can enter Msconfig in "Run" and call "System Configuration Utility" to terminate the system random startup program. 2000 system needs to copy msconfig program from XP. 8. Cancel the background and close activedesktop. I don't know if you have noticed that the beautiful background we have been putting on the desktop is actually a waste of computer resources! Not only that, it will also slow down the computer when executing applications! I wanted to beautify the desktop, but it slowed down the computer, so we didn't need the background. To do this, right-click the desktop, click Content, and then select None in the Background dialog box. In the Appearance dialog box, the preset turquoise on the desktop turns black ... As for closing activedesktop, you will be told to close the web screen from the desktop. So don't turn it on if the system configuration is not high. 10, which makes Windows slim. Compared with DOS system, Windows is too big, and with your daily operation, you install new software, load runtime and add new games. It becomes bigger, and more importantly, it is not only its directory, but also its registry and runtime. Because even if a program is deleted, the DLL file it uses will still exist. Therefore, with the long-term use, the DLL files that need to be loaded when Windows starts and exits are getting bigger and bigger, and the running speed of the natural system is getting slower and slower. At this time, you need to use some programs that completely delete dll, which can make Windows slim again. It is recommended that the best players reinstall Windows once every two months, which is very effective. 1 1. Change the startup time of the system. Although you already know how to add and delete some random startup programs, do you know what the computer is doing from startup to entering Windows? Or, what program is being executed? These programs must be fully loaded before entering Windows. Have you ever thought that if you can delete some unnecessary startup programs, the startup speed will be accelerated? The answer is yes! If you want to modify, you can press "Start", select "Execute", and then enter win.ini. After opening, you can delete the contents of the following paragraphs, even the titles! They include: [Compatibility], [Compatibility 32], [ime Compatibility], [Compatibility 95], [Module Compatibility] and [Embedding]. Second, the hardware 1, Windows system automatically closes the hard disk DMA mode. Everyone should know that the PATA modes of hard disks are DMA33, DMA66, DMA 100, DMA 133, and the latest SATA- 150 has come out! Generally speaking, most people still use the hard disk in PATA mode, and the transmission speed of the hard disk in DMA mode is 2~8 times faster than that in PIO mode. DMA mode plays an important role in system performance. But you know what? Windows 2000, XP and 2003 systems sometimes turn off the DMA mode of the hard disk and automatically switch to PIO mode! This leads to the sudden decline of hard disk performance when using the above system, and the most obvious phenomenon is that the startup speed of the system is obviously slow. Generally speaking, when a normal Windows XP system starts, the slider moving from left to right can start the system up to 2 ~ 4 times, but when this problem occurs, it may go 5 ~ 8 times or even more! Moreover, the hard disk operation is obviously slow when the system is running. When running some large-scale software, the CPU utilization often reaches 100%, which leads to a pause, while when playing some large-scale 3D games, the picture obviously stops. When the above problems occur, you'd better see if the DMA mode of your hard disk is automatically turned off by the Windows system. Check whether DMA mode is turned on in your system: a. Double-click "Administrative Tools" and then double-click "Computer Management"; B. Click System Tools, and then click Device Manager; C. expand the node "IDE ATA/ATAPI controller"; D. double-click your "main IDE controller"; 2. Whether the 2.CPU and fan work normally and are fully cooled. When the speed of the CPU fan slows down, the temperature of the CPU itself will rise. In order to protect the security of CPU, CPU will automatically reduce the running frequency, which will slow down the running speed of the computer. There are two ways to detect the temperature of the CPU. You can use the "finger test" method to test whether the temperature of the processor is hot, but it should be noted that this method must first unplug the power plug and then connect a ground wire to prevent static electricity from penetrating the CPU or even damaging the CPU. Another scientific method is to use a multimeter with a temperature sensor to detect the temperature of the processor. Because the types and models of processors are different, the reasonable temperature is also different. But generally speaking, the temperature should be lower than 1 10 degrees. If the processor test is found to be higher than this temperature, check whether the fan in the chassis works normally. 3, the impact of USB and scanner Because Windows will test every drive (including optical drive) when it starts, if a CD is put in the optical drive, it will also extend the startup time of the computer. So if the computer is equipped with scanners and other devices, or the USB hard disk is connected when it is started, then try to disconnect them first to see if the startup speed has changed. Generally speaking, due to the slow speed of USB interface, the corresponding devices will obviously affect the startup speed of the computer, so you should try to connect USB devices after startup. If there is no USB device, it is recommended to turn off the USB function directly in BIOS settings. 4. Did you use disk compression? Because "disk compression" may cause a sharp decline in computer performance and slow down the system. So at this time, you should check whether "disk compression" is used. The specific operation is to click the right mouse button on "My Computer" and select the "Properties" option from the pop-up menu to view the properties of the drive. 5. The impact of the network card As long as it is not set properly, the network card will obviously affect the system startup speed. If your computer is connected to a local area network, the system will automatically get the IP address through DHCP by default after installing the network card driver. However, there is no DHCP server in the local area network of most companies, so if the user sets it to "automatically get the IP address", the system will constantly search the DHCP server in the network at startup until it gets the IP address or times out, which will naturally affect the startup time. Therefore, LAN users are the best. 6. Folders and printers * * * Computers with Windows XP Professional Edition installed will also start very slowly. Sometimes the system seems to crash. After logging into the system, the desktop does not appear and the computer seems to stop responding. It takes 1 min for normal use. This is because after using the Bootvis.exe program, the Mrxsmb.dll file adds 67 seconds to the computer startup! To solve this problem, just stop * * * sharing folders and printers: select Start → Settings → Network and Dial-up Connections, right-click Local Area Connection, select Properties, uncheck the check box before * * * sharing files and printers on Microsoft network in the open window, and restart the computer. 7. Improper configuration of system accessories Some users often ignore some trivial matters when assembling machines, resulting in improper matching of computer accessories and speed bottlenecks. For example, some friends choose high-end CPU, but sound cards and the like all buy ordinary cheap goods. In fact, this is often not worth the loss. Because in this way, when the computer is running games and playing DVD, the sound card occupies high CPU resources, the data transmission speed is slow, or there is no hardware decoding at all, and software decoding is needed, which often leads to the pause of sound and even the intermittent operation of programs. For example, some friends have upgraded their machines. Some parts of the old machine, such as memory chips, are unwilling to be abandoned and installed on the new machine. However, due to the speed limitation of the old memory, new machines often have to slow down to adapt to it, thus reducing the performance of the whole machine and greatly affecting the overall running speed. 9. Disconnect unused network drives In order to eliminate or reduce the number of network connections that Windows must reestablish, it is suggested to disconnect some unnecessary network drives, that is, enter My Computer, right-click the mapped network drive and select Disconnect. 10, insufficient memory One of the advantages of Windows operating system is multi-line multitasking. The system can use CPU for time-sharing operation, so that you can do many things at the same time. But there are advantages and disadvantages, and multitasking will also put forward higher requirements for your machine. Friends all know that even the most commonly used WORD software needs about 16MB of memory, but when running large-scale software such as 3D MAX, 64MB of memory is not enough. So at this time, the system will automatically use the hard disk space in virtual main memory to run programs and store exchange files and various temporary files. Because hard disk is a mechanical structure and memory is an electronic structure, the speed difference between them is several orders of magnitude, so virtualizing main memory with hard disk will greatly slow down the running speed of the program. 165438+ When the available space of the hard disk is small to a certain extent, the system will lack the available space for exchanging files and temporary files, which will reduce the operating efficiency of the system. More importantly, because we frequently store and delete all kinds of software on the hard disk, the available space of the hard disk becomes fragmented, so the system often does not store files in a continuous order, which will lead to the frequent movement of the head when the system stores and reads files, greatly reducing the running speed of the system. 12, too many hard disk partitions is not right. If your Windows 2000 is not upgraded to SP3 or SP4, and too many partitions are defined, it will take a long time to start, or even hang up. Therefore, it is recommended to upgrade the latest SP4, and at the same time, it is best not to divide the hard disk into too many areas. Because Windows must load each partition at startup, the total time to complete this operation will increase as the number of partitions increases. Third, the virus article If your computer is infected with a virus, the running speed of the system will be greatly slowed down. After the virus invaded, it first occupied the stronghold of memory, and then began to copy itself endlessly in the memory based on it. As it becomes more and more huge, it quickly takes up a lot of memory in the system, which leads to the slow running of normal programs and even the inability to start because of insufficient main memory. At the same time, the virus program will force the CPU to execute useless junk programs, so that the system is always in a busy state, affecting the operation of normal programs and causing the computer to slow down. Here are some viruses that can slow down the system. 1. Bride virus type that slows down the system: hacker attack time: random transmission mode: network infected object: network vigilance: ★★★★★★★ Virus introduction: The virus can run normally in operating system environments such as Windows 2000 and Windows XP. The runtime will automatically connect.