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System optimization

1. Software

1. Setting virtual memory

There is a very large data exchange file in the hard disk, which is reserved by the system for virtual memory. The memory is used for temporary storage and is often used by many applications. Therefore, the system needs to frequently access a large amount of data from the main memory. Therefore, the speed of accessing this file is a very important factor that affects the speed of the computer! Generally, the default setting of Windows is for the system to manage virtual memory by itself. It will automatically adjust the size of the swap file according to the needs of different programs. However, such enlargement and reduction will bring additional burden to the system and make the system operation slower! In view of this, it is best for users to customize the minimum and maximum values ????of virtual memory to avoid frequent changes in size. To set virtual memory, right-click on "My Computer" and select "Properties". In the "Performance" dialog box in the "Advanced" option, set "Virtual Memory".

3. Check application software or drivers

Some programs slow down the computer system when it starts. If this is the reason, we can boot from "Safe Mode". Because this is a raw boot, Safe Mode runs slower than normal. However, if you use "Safe Mode" to start and find that the computer starts up faster than normal startup, it may be that a program is causing the system to start slower.

4. Too many icons on the desktop will cause trouble.

Having too many icons on the desktop will also slow down the system startup speed. Every time Windows starts and displays the desktop, it needs to find the icons of the desktop shortcuts one by one and load them. The more icons there are, the more time it takes of course. At the same time, some anti-virus software provides a system startup scan function, which will take a lot of time. In fact, if you have turned on the real-time monitoring function of the anti-virus software, then scanning the system at startup is a bit redundant. It is better to disable this function. ! It is recommended that you put infrequently used desktop icons into a special folder or delete them altogether!

5. Slow system startup caused by ADSL

By default, Windows XP will perform self-checks on network devices such as network cards when starting. If it is found that the IP address of the network card is not configured, OK will set it up, which may be the real cause of a slow system startup. At this time we can open the "Local Area Connection" properties 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 in the public network (the default gateway is 192.168.1.1) such as 192.168.1.X, X takes a value between 2 and 255, and the subnet mask is set to 255.255.255.0, default gateway and DNS can be set to default.

6. The impact of fonts on speed

Although Microsoft claims that the Windows operating system can install 1,000 to 1,500 fonts, in fact, when you install more than 500 fonts, problems will occur. Problems such as: fonts disappearing from the application's font list and Windows startup slowing down significantly. It is recommended here that it is best to delete fonts that are not used or commonly used. To avoid accidents after deletion, you can make necessary backups first.

7. Delete random startup programs

What is a random startup program? Random startup programs are programs that are loaded when the computer is turned on.

Random startup programs 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 from the "Startup" list, but if you want to be more detailed, such as QQ , popkiller and other software cannot be deleted in the "Startup" list. Go to "Accessory Applications", then "System Tools", then "System Information". After entering, click "Tools" on the tool bar above ", and then click "System Configuration Editor". After entering, in the "Startup" dialog box, the random startup programs that are loaded when starting the computer will be listed in detail! In XP system, you can also enter Msconfig in "Run" to call "System Configuration Utility" to terminate the system random startup program. For 2000 system, you need to copy the msconfig program from XP.

8. Cancel the background and close activedesktop

I wonder if you have noticed that the beautiful backgrounds we always place on the desktop are actually a waste of computer resources! Not only that, but it also slows down the computer when executing applications! We want to beautify the desktop, but it slows down the computer, so we need to stop using the background. The method is: right-click on the desktop, click Content, and then select "None" in the "Background" dialog box. , in the "Appearance" dialog box, change the desktop default turquoise to black... As for closing activedesktop, it tells you to close the web screen from the desktop, for example, press the right mouse button on the desktop , then click the content, and then in the "Background" dialog box, there is a background named Windows XX, and that is the web screen! So if the system configuration is not high, do not enable it.

10. Make Windows slimmer

Compared with DOS systems, Windows is too large, and with your daily operations, you install new software, load runtime libraries, and add new Games, etc. make it larger, and more importantly, it is not only its directory that becomes larger, but also its registry and runtime library. Because even if a program is deleted, the DLL file it uses will still exist. Therefore, as time goes by, the DLL dynamic link library files that need to be loaded when Windows starts and exits become larger and larger, and naturally the system running speed will also decrease. It's getting slower and slower. At this time, we need to use some programs that completely delete DLLs, which can restore Windows to a slim figure. It is recommended that top players reinstall Windows every two months, which is very effective.

11. Change the system boot time

Although you already know how to add and delete some random startup programs, do you know that from the moment you start up to enter Windows? What is the computer doing for a while? Or, what program is being executed? Those programs must all be loaded before Windows starts. Have you ever thought that if you can delete some unnecessary startup programs, will the startup speed be faster? The answer is yes! If you want to modify, you can press "Start", select "Execute", and then type win.ini. After opening, you can delete the content of the following paragraphs. It is to delete the content, but do not delete the title as well! They include: [compatibility], [compatibility32], [imecompatibility], [compatibility95], [modulecompatibility], and [embedding].

2. Hardware

1. The Windows system automatically turns off the hard disk DMA mode

Everyone should know the DMA mode of the hard disk. The PATA mode of the hard disk has DMA33 , DMA66, DMA100 and DMA133, the latest SATA-150 are out! Generally speaking, most people now use PATA mode hard drives. The hard drive uses DMA mode to transfer 2 to 8 times faster than the previous PIO mode. The activation of DMA mode plays a substantial role in the performance of the system. 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 to run! This results in a sudden drop in hard disk performance when using the above systems. The most obvious phenomena are: the system startup speed is significantly slower. Generally speaking, when a normal Windows XP system is started, the slider that moves from left to right moves up to 2 to 4 times. The system can start in one time, but when this problem occurs, it may start 5 to 8 times or more! Moreover, when the system is running, the hard disk operation obviously feels slow. When running some large software, the CPU usage often reaches 100 and pauses occur. When playing some large-scale 3D games, there are obvious pauses in the screen. It is best if the above problems occur. Check whether the DMA mode of your hard disk has been turned off by the Windows system. Check whether your system has DMA mode turned on:

a. Double-click "Administrative Tools" and then double-click "Computer Management";

b. Click "System Tools" and then click "Device Manager";

c. Expand the "IDE ATA/ATAPI Controller" node;

d. Double-click your "Primary IDE Controller";

2. Whether the CPU and fan are operating normally and cooling enough

When the CPU fan speed slows down, the temperature of the CPU itself will increase. In order to protect the safety of the CPU, the CPU will automatically reduce the operating frequency. , causing the computer to run slower. There are two ways to detect the CPU temperature. You can use the "finger test method" to test whether the temperature of the processor is hot to your hands, but it should be noted that using this method, you must first unplug the power plug and then connect a grounding wire to prevent the static electricity you carry from breaking down the CPU. to damage. Another more 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 temperatures are also different. But in general, temperatures should be below 110 degrees. If you find that your processor is testing above this temperature, check to see if the fans in the case are running properly.

3. Impact caused by USB and scanners

Since Windows will detect each drive (including the optical drive) when it starts, if a disc is placed in the optical drive, it will also prolong the computer's startup time. So if the computer has a scanner or other devices installed, or a USB hard drive has been connected during startup, you might as well try disconnecting them first to see if the startup speed changes. Generally speaking, because the USB interface is slow, the corresponding device will have a significant impact on the computer startup speed. You should try to connect the USB device after startup. If there is no USB device, it is recommended to turn off the USB function directly in the BIOS settings.

4. Whether disk compression is used?

Because "disk compression" may cause a sharp decline in computer performance, causing the system to slow down. So at this time you should check whether "Disk Compression" is used. The specific operation is to right-click on "My Computer" and select the "Properties" option from the pop-up menu to check the properties of the drive.

5. Impact caused by network card

As long as the setting is improper, the network card will also significantly affect the system startup speed. If your computer is connected to the LAN, after installing the network card driver, the default Under normal circumstances, the system will automatically obtain an IP address through DHCP, but most companies' LANs do not have a DHCP server. Therefore, if the user sets it to "obtain an IP address automatically", the system will continue to search for a DHCP server in the network when it starts. Obtaining an IP address or timeout will naturally affect the startup time, so LAN users are best to specify a fixed IP address for their computers.

6. Folder and printer sharing

Computers with Windows XP Professional installed will also start very slowly. Sometimes the system seems to have crashed. , after logging into the system, the desktop does not appear, the computer seems to stop responding, and it can be used normally after 1 minute. This is due to the fact that after using the Bootvis.exe program, the Mrxsmb.dll file adds 67 seconds to the computer startup time!

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", and In the window that opens, uncheck the checkbox in front of "File and Printer Sharing for Microsoft Networks" under "This connection uses the following selected components" and restart the computer.

7. Improper configuration of system accessories

Some users tend to ignore some small things when assembling the machine, resulting in improper matching of the overall computer accessories and a speed bottleneck. For example, some friends choose a high-end CPU, but buy ordinary cheap products such as sound cards. In fact, this is often not worth the gain. Because when the computer is running games or playing DVDs, the sound card takes up a lot of CPU resources and its data transmission speed is slow, or it does not have hardware decoding at all and needs to use software decoding, which often causes the sound to pause and even causes the program to The operation is intermittent. Another example is that some friends' machines have been upgraded. In the past, some components on the old machine, such as memory sticks, were reluctant to discard and were installed on the new machine. However, due to the speed limit of the old memory, the new machine often had to slow down to accommodate. It thereby reduces the performance of the entire machine and greatly affects the overall operating speed.

9. Disconnect unused network drives

In order to eliminate or reduce the number of network connections that Windows must re-establish, it is recommended to disconnect some unused network drives, that is, enter "My Computer", right-click the mapped network drive and select "Disconnect".

10. Lack of enough memory

One of the advantages of the Windows operating system is multi-linearity and multi-tasking. The system can use the CPU to perform time-sharing operations so that you can perform time-sharing operations at the same time. Do many things. But things have their pros and cons, and multitasking will also put higher demands on your machine. Friends all know that even the most commonly used WORD software requires about 16MB of memory, and when running large software such as 3D MAX, 64MB of memory is not enough. So at this time, the system will automatically use the hard disk space to virtualize the main memory, which is used to run programs and store swap files and various temporary files. Since the hard disk is a mechanical structure and the memory is an electronic structure, the speed difference between them is several orders of magnitude. Therefore, using the hard disk to virtualize the main memory will cause the program running speed to be greatly reduced.

11. Insufficient hard disk space

One of the disadvantages of using the Windows system platform is that the management of files is unclear. Sometimes you simply don’t know whether the file is useful to the system, so Windows The number of files in the directory is increasing, and the capacity is getting larger and larger. In addition, today's software likes to get bigger and bigger, plus some temporary files and swap files generated by the system, all of which will reduce the available space on the hard disk. .

When the available space of the hard disk reaches a certain level, the system's swap files and temporary files will lack available space, 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 continuous order, which will cause the system to store and read files. Frequent movement of the magnetic head during file processing greatly reduces the running speed of the system.

12. It is also wrong to have too many hard disk partitions

If your Windows 2000 has not been upgraded to SP3 or SP4, and too many partitions are defined, it will also make startup difficult. Long, even hanging. Therefore, it is recommended to upgrade to the latest SP4, and it is best not to divide too many areas into the hard disk. Because Windows must mount each partition at startup, the total amount of time to complete this operation increases as the number of partitions increases.

3. Viruses

If your computer is infected with a virus, the system will slow down significantly. After the virus invades, it first occupies the memory as a stronghold, and then uses it as a basis to start copying itself endlessly in the memory. As it becomes larger and larger, it quickly takes up a large amount of system memory, causing normal program running time. Slow down due to lack of main memory, or even unable to start; at the same time, virus programs will force the CPU to execute useless garbage programs, making the system always busy, thus affecting the operation of normal programs, causing the computer to slow down. Below we introduce several viruses that can slow down your system.

1. Bride virus that slows down the system

Virus type: hacker program

Time of onset: random

Method of spread: network

Infection target: network

Vigilance level: ★★★★

Virus introduction:

This virus can be found in Windows 2000, Windows It runs normally under operating system environments such as XP. When running, it will automatically connect to the www.hotmail.com website. If it cannot connect to this website, the virus will sleep for a few minutes, then modify the registry to add itself to the registry auto-start item. The virus will release four virus bodies and a virus. Vulnerable virus emails are sent out randomly through the mail system. The virus will also release the FUNLOVE virus to infect LAN computers. Finally, the virus will kill dozens of known anti-virus software, rendering these anti-virus software ineffective.

Virus signatures

If a user finds these signatures in their computer, they are likely to be infected by the virus.

·After the virus is run, it will automatically connect to the www.hotmail.com website.

·The virus will release three files: Bride.exe, Msconfig.exe, and Regedit.exe to the system directory; it will release: Help.eml and Explorer.exe files to the desktop.

·The virus will add the path of the virus Regedit.exe to the HKEY_LOCAL_MACHINESOFTWAREMicrosoftWindowsCurrentVersionRun item in the registry.

·When the virus is running, it will release a FUNLOVE virus and execute it, and the FUNLOVE virus will multiply in the computer, causing the system to slow down and the network to be blocked.

·The virus will look for the email address in the computer, and then send out a large number of emails based on the address with the title: lt; Infected computer name gt; (Example: If the user’s computer name is: Zhang Dong, The title of the virus email is: Zhang Dong) virus email.

·The virus will also kill dozens of famous foreign anti-virus software.

If the user finds all or part of the above phenomena in his or her computer, it is very likely that the Bride (Worm.bride) virus has been infected. Please use the anti-virus software to remove it immediately.

2. Aphron virus that slows down the system

Virus type: worm

Time of onset: random

Method of propagation : Network/File

Infected object: network

Vigilance level: ★★★★

Virus introduction:

This virus can be found on It can run normally under Windows 9X, Windows NT, Windows 2000, Windows XP and other operating system environments. When the virus is running, it will copy itself to the TEMP, SYSTEM, and RECYCLED directories and randomly generate file names. After the virus is run, it will consume a large amount of system resources, make the system significantly slower, kill some running anti-virus software, and create four threads to spread crazily in the local area network.

Virus characteristics

If the user finds these characteristics in the computer, it is likely to be infected by the virus:

·The virus will replicate itself when running Go to the TEMP, SYSTEM, and RECYCLED directories with random file names

·When the virus is running, the system will obviously slow down

·The virus will kill some running anti-virus software

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·The virus will modify the self-start item of the registry to start automatically

·The virus will create four threads to spread in the local area network

If the user is in his own computer If you find all or part of the above phenomena, you are likely to be infected by the "Worm.Avron" virus. Since this virus does not have a fixed virus file name, it is best to use anti-virus software to remove it.

3. Vicious Worm Sasser

Virus name: Worm.Sasser

Chinese name: Sasser

Virus alias: W32/ Sasser.worm [Mcafee]

Virus type: Worm

Affected systems: WinNT/Win2000/WinXP/Win2003

Virus infection symptoms:

·The computer crashes inexplicably or restarts;

·The system is extremely slow and the CPU usage is 100;

·The network becomes slow;

·The most The important thing is that there is a process called "avserve.exe" running in the task manager!

Destruction method:

·Use the Lsass vulnerability of the WINDOWS platform to spread widely, open hundreds of threads to continuously attack other systems on the Internet, and block the network. The attack behavior of the virus can cause the system to continuously count down to restart.

·Unlike most worms that have appeared recently, this virus does not spread through emails, but by instructing vulnerable machines

to download specific files and run them. purpose of infection.

·File name: avserve.exe

Solution:

·Please upgrade your operating system to avoid attacks

·Please open the personal firewall to block ports: 445, 5554 and 9996 to prevent the program named avserve.exe from accessing the network

·Manual solution:

First, if the system is WinMe/ If WinXP, please turn off the system restore function first;

Step 1, use the process manager to end the virus process

Right-click the taskbar, the menu will pop up, and select "Task Manager" , bring up the "Windows Task Manager" window.

In the Task Manager, click the "Processes" tab, find the virus process "avserve.exe" in the Example column, click the "End Process Button", click "Yes" to end the virus process, and then close "Windows Task Management ";

Step 2, find and delete virus programs

Enter the system installation directory (Winnt or Windows) through "My Computer" or "Explorer" and find the file " avser ve.exe", delete it; then enter the system directory (Winntsystem32 or windowssystem32), find the files "*_up.exe", and delete them;

Step 3, remove the virus and add it to the registry

Open the Registry Editor: Click Start -> Run, enter REGEDIT, press Enter;

In the left panel, double-click (search in the order of the arrows, find Then double-click):

HKEY_CURRENT_USERSOFTWAREMicrosoftWindowsCurrentVersionRun

In the right panel, find and delete the following items: "avserve.exe" = SystemRootavserve.exe

Close the registry Editor.

Part 2 System Acceleration

1. Windows 98

1. Do not load too many random startup programs

Do not start the computer Loading too many unnecessary random startup programs. Select "Start→Programs→Accessories→System Tools→System Information→System Information Dialog Box", then select "Tools→System Configuration Utility→Start". You only need to tick internat.exe, and other items are not required. After selecting, confirm and restart.

2. Convert system file format

Convert the hard disk from FAT16 to FAT32.

3. Don’t use the background easily

Don’t use ActiveDesktop, otherwise the system will slow down (right-click the screen → Search for display properties → Web tab → Change the settings about “Active Desktop” ” and “Channel” options are all cancelled).

4. Set virtual memory

Set the virtual memory to 3 times the machine memory. For example: if there is 32M of memory, set the virtual memory to 96M, and the maximum and minimum values. are the same (this setting can be set through "Control Panel→System→Performance→Virtual Memory").

5. Some optimization settings

a. Go to the control panel and select "System → Performance → File System". Change the "main purpose of the computer" on the hard disk label to network server, and adjust the "pre-read optimization" to full speed.

b. Cancel "Search for a new floppy drive every time it starts" in the "Floppy Disk" tab.

c. Adjust the "Append Cache" in the CD-ROM to the maximum, and select a quadruple speed or faster CD-ROM as the access method.

6. Organize the system regularly

Use the following tools regularly: disk scan, disk cleanup, defragmentation, System File Checker (ASD), Dr. Watson, etc.

2. Windows 2000

1. Upgrade the file system

a. If the operating system you are using is a dual boot of win 9x and win 2000, it is recommended that the file The system format uses FAT32 format, which can save hard disk space, and secondly, can realize resource sharing between 9x and 2000.

Reminder: To achieve such a dual boot, it is best to first install 9x in area C in a pure DOS environment, and then install 2000 in 9x or use the win 2000 startup disk to install 2000 in a DOS environment. In another area, and this area must have at least 800M of space

b. If you only use win 2000, it is recommended to convert the file system format to NTFS format, which can save hard disk space. Secondly, the stability and running speed are higher, and this file system format has good error correction; but in this way, DOS and win 9x systems cannot run in this file system format, which is also the reason why dual-processing is mentioned above. It is best to use FAT32 format for startup to ensure maximum resource sharing. Moreover, some applications cannot run in this file system format, mostly games under DOS.

Reminder: The method to upgrade the file system to NTFS format under win 2000 is to click "Start-Programs-Accessories" to select "Command Prompt", and then enter "convert drive_letter" in the opened prompt window :/fs:ntfs", where "drive" is the hard disk partition symbol you want to upgrade, such as area C; it should also be noted that upgrading the file system will not destroy the files in the upgraded hard disk partition, and no backup is required.

· Run "Add-Remove Programs" again, and you will see an additional "Add/Remove Windows Components" option;

b. Open "Folder Options", Select "Show all files and folders" in the "View" tab. At this time, two files, Autoexec.bat and Config.sys, will appear in the root directory of the partition where you installed win 2000. In fact, in these two files There is nothing at all and they can be safely deleted.

c. Right-click "My Computer", select "Manage", click the "Service" option under "Services and Applications", you will see the various program groups loaded on win 2000, among which There are many related to LAN settings or other functions. You can completely disable programs you do not use;

For example: Alertr, if you are not in a LAN, you can set it to be disabled; and Fax Service, if it does not send faxes, is set to disabled; Print Spooler, if there is no printer, is set to system use; Uninterruptible Power Supply, if there is no UPS, is also set to be disabled. You can set these loaders according to your actual situation.

There are descriptions and running status behind each loader; select the program to be disabled, right-click it, select "Properties", then click Stop, and set the "Startup Type" to "Manual " or "Disabled" will do.

d. Turn off the debugger Dr. Watson;

Run drwtsn32 and remove everything except "Dump all thread contexts". Otherwise, once a program error occurs, the hard disk will beep for a long time and take up a lot of space. If you have encountered this situation before, please find the user.dmp file and delete it, which may save dozens of megabytes of space. This is the scene of the erroneous program and is of no use to us. In addition, the memory.dmp that appears during the blue screen can also be deleted. Can be turned off in My Computer/Properties