The computer is slow.

There are too many software and programs installed in the computer, too many startup items, too many desktop icons (shortcuts), desktop background pictures, screensavers, system standby, etc. , which may affect the startup. The most important thing is that there is too much system garbage and the disk fragments have not been sorted for a long time. ....

Scan the virus thoroughly to eliminate the possibility of poisoning. You can take the following measures first:

Option one.

1. command repair: If you find that your IE is out of order in Windows XP Service Pack 2, you can try to "run" this command: "%programfiles% \ Internet Explorer \ iexplore.exe"/rereg "(double quotation marks are necessary), which can help you re-register all components of IE and completely repair the paralyzed IE, but it is not applicable to other versions.

2. Download and install 360 Security Guard-Advanced-Repair IE-Check the repair option or select all-Repair immediately. After the repair, reset IE home page.

3. Start IE Browser-Tools-Internet Options-Advanced -HTTP 1. 1- Tick before "Use HTTP 1. 1", and remove "Use http1through proxy connection".

4. Under the common options of 360 security guards, click "Kill Popular Trojans" and "Clean Bad Comment Plug-ins" respectively-start scanning-check the scanned popular Trojans and bad comment plug-ins respectively-click "Kill Now" and "Clear Now" respectively. Pay special attention to malicious rogue plug-ins such as 372 1, Yahoo Assistant, Chinese Internet access and Baidu Internet search. , should be resolutely eliminated.

It is suggested to simply download and install the latest IE8 released by Microsoft. You don't need to uninstall the old IE when installing, just double-click IE8 installer.

(IE8)Internet Explorer 8.0 WINXP Simplified Chinese Official Edition

Download address:/html _ 2/1104/id = 49581&; pn = 0 . html；

360 Security Guard V5.2 Official Version Download Website:/;

Option two.

Take the following methods, there will be obvious effects:

1. There are too many startup items in the system, which affects the startup speed. Methods: Start-Run-Enter msconfig- Start-In the startup item, just keep ctfmon (input method) and antivirus software, and check other -OK.

2. Turn off the special effects in the system properties, which is a simple and effective acceleration method. Right-click my computer-Properties-Advanced-Performance-Settings-In the visual effect, adjust the settings to the best performance -OK.

3. Right-click Desktop-Properties-Desktop-Background-Uncheck; Color—Select black; Desktop background has the greatest influence on boot speed; It should be removed.

4. Screen Saver—Select None. Cancel system standby and hibernation, because system standby or hibernation will occupy all physical memory.

5. Appearance-Windows and Buttons-Select Classic Style-Color Scheme-Select Windows Classic.

6, keep up to ten or so; Some uncommon icons should be deleted from the desktop.

7. For some things that are not commonly used and don't want to be deleted, you can put them in a folder. Method: Right-click the desktop-arrange icons-run the desktop cleaning wizard, and you just need to clean up according to the prompts.

8. If your system antivirus software starts at random when it is turned on, the antivirus software will scan and check whether the icon link is poisonous. This will take some time, and the icon display will be slow. This is normal, not a computer problem. There are a lot of them online, so you can search them.

9. Start-Run-Enter regedit and press Enter. Open the registry editor, find HKEY _ local _ machine \ system \ current control set \ control \ session manager \ memory management \ prefetch parameter, find the EnablePrefetcher key on the right, and change its default value of 3 to 1, so that the scrolling time of the scroll bar will be reduced.

10. Right-click "My Computer"-Properties-Hardware-Device Manager-click the "IDE ATA/ATAPI" option-double-click "Auxiliary IDE Channel"-Advanced Settings-Device Type, and change "Automatic Detection" to "None", mainly to make the same settings for IDE channels.

1 1. Enter gpedit.msc in "Start → Run" to open the Group Policy Editor. Find "Computer Configuration → Management Template → Network →QoS Packet Scheduler", select "Restrict Reserved Bandwidth" on the right, select "Properties" to open the dialog box of Restrict Reserved Bandwidth, and select "Disable". This frees up the reserved bandwidth.

12, it is recommended to clean CC frequently (such as system junk files and system registry junk), and recommend a small program in CC clean (see the final attachment).

13. It is recommended to set IE temporary files and virtual memory in your computer on a non-system disk.

14. Don't open too many application software at the same time, and turn off the monitoring function of anti-virus software or other optimized software, because the monitoring function of anti-virus software or other optimized software takes up system resources.

15. Restart the computer. After booting to the desktop, a window pops up. Add a check mark in the small box, and then click OK (because the system configuration utility has changed).

In addition, we should also pay attention to frequent cclean and defragment the disk on time. There are quite a lot online in this respect, so pay more attention to search for it yourself.

Finally, I suggest you download and install Windows Optimizer to clean and optimize your system comprehensively. After cleaning and optimizing this software, the running speed and performance of your system will definitely be improved obviously.

Attachment:

Click Start → Program → Attachment → Notepad in the lower left corner of the computer screen, copy the following text (black part), click Save As, select the desktop by path, save all files with the file name of Clear System LJ.bat, and it is finished. Remember that the suffix must be. Bat, good! Your garbage cleaner has been made successfully!

Double-click it to quickly clean up junk files in less than a minute.

= = = = = is the following text (this line does not need to be copied) = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = =

@ Turn off echo

Please wait while Echo files in cclean. ......

del /f /s /q %systemdrive%\*。 Terminal Monitor Program (abbreviation of terminal monitor program)

del /f /s /q %systemdrive%\*。 _mp

del /f /s /q %systemdrive%\*。 log

del /f /s /q %systemdrive%\*。 Dizziness

del /f /s /q %systemdrive%\*。 chk

del /f /s /q %systemdrive%\*。 old

del/f/s/q % system drive % \ recycled \ *。 *

del /f /s /q %windir%\*。 bak

Del/f/s/q% windir% \ prefetch \ *. *

rd/s/q % windir % \ temp & amp； md %windir%\temp

del/f/q % user profile % \ cookie \ *。 *

del /f /q %userprofile%\recent\*。 *

del/f/s/q " % user profile % \ Local Settings \ Temporary Internet Files \ *。 *"

del/f/s/q " % user profile % \ Local Settings \ Temp \ *。 *"

del/f/s/q " % user profile % \ recent \ *。 *"

Echo, clear the system. LJ's done!

Echo. & stop

= = = = = So far (this line does not need to be copied) = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = =

In the future, just double-click the running file, and when the screen prompts "Cleaning system LJ is complete, your system will become clean and slim.

* Reset virtual memory

How to set up virtual memory reasonably to prevent the system from running out of memory?

1, custom virtual memory, it is best to give it a fixed value, so it is not easy to generate disk fragmentation. The specific value depends on the size of your physical memory. Generally, 128MB physical memory is 2 -3 times, 256MB/384MB is 1.5-2 times, and 5438+02 MB is 65438.

2, virtual memory (page file) storage partition, there must be enough space, hard disk resources, resulting in insufficient virtual memory. It is enough to set up virtual memory in one partition of the computer, and it is not necessary to set up virtual memory in other partitions. Generally speaking, it is located in partition D near partition C where the system is installed.

3. The specific steps are as follows: right-click my computer → Properties → Advanced → Performance settings → Advanced → Virtual memory change → Select the partition for storing virtual memory (page file) → Customize the size → Determine the maximum and minimum values → Set → OK.

4. Cancel the page file settings in the partition. Right-click on My Computer-Properties-Advanced-Performance Settings-Advanced-Virtual Memory Change-Select the drive letter (c) Where you have a pagefile in the drive list-Select No Pagefile-Set to delete the pagefile setting on this disk.

* Skills to speed up browser loading and browsing.

By default, IE only allows two sessions to be downloaded from a network server at the same time. This will affect your web browsing speed, because you can't download all the objects that make up a web page at the same time, so the display of the page will be much slower. If IE can be forced to download more objects at the same time, the display of web pages will be much faster.

Windows registry modification technology can do this. With this modification, you can force IE to use more than two concurrent sessions. The best number is 10. The following are the operation steps:

Run Registry Editor and expand to HKEY _ Current _ Users/Software/Microsoft /Windows/ Current Version/Internet Settings.

Select edit → new →"DWORD value to create a new DWORD value, name it as the maximum number of connections per 1 _ 0 server, and set its value to 10.

* Simply change a value to speed up broadband Internet access immediately.

Classic experience sticker:

If it is broadband internet access, then setting an appropriate TcpWindow value in the registry can speed up the internet access.

Open the registry editor (start-run-enter REGEDIT) and find the subitem of "HKEY _ local _ machine \ system \ current control set \ service \ tcpip \ parameters" in it. In the key area on the right, find or create a new DWORD key named "GlobalmaxTcp WindowSize" and set its data value to "256966". Do you feel much faster than before? The principle of this change is that under normal circumstances, the default data transmission unit of TCP/IP accepts the buffer size of 576 bytes. If the size of this buffer is set to be large, once a TCP/IP packet data goes wrong, all the packet contents in the whole data buffer will be lost and retransmitted; Obviously, constant retransmission will greatly affect the efficiency of ADSL data transmission. Therefore, setting the appropriate buffer size to ensure the high efficiency of ADSL data transmission will have a direct impact on ADSL transmission speed!

Original key value: 255552 (hexadecimal)

Download and install Windows Optimizer free version 7.96 Build 9.605 to clean and optimize the system comprehensively.

Download URL:

/html 2/ 1/83/id = 65 & amp； pn = 0 . html；

Or download and install the official version of Master Lu (formerly: Z Weapon) V2.37,

Professional and easy-to-use hardware detection can easily distinguish the authenticity of hardware, monitor the temperature of hardware in real time, and maintain the stability of computer.

Scan and fix system vulnerabilities, clean up garbage, optimize performance ... and make computers work in the best condition. ....

Download website:/download.html;

Answer: 20: 33 on August 20th, 2009.

Revision time: August 20, 2009 at 20: 40.

The questioner's evaluation of the answer:

*** 12 comments ...

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from left to right

[scholar]

There are many reasons. First kill viruses and Trojans, and then clean up startup items and system garbage. Please ask Baidu for specific methods.

Answer: August 20, 2009 at 20: 10

comment

Low throw and high suction _ 1976

[Purple MSI]

Suggest killing Trojan horse first and trying to repair the system.

I suggest you download tools to kill malware and trojans. Windows cleanup assistant kills malware and trojans;

Download URL: www.arswp.com

After downloading and installing, upgrade to the latest version, then exit normal mode and restart, and press F8 to enter safe mode. Open the software, click "System Scan", select all scan results, and then click the "Perform Cleaning" button. If the software prompts whether to "backup", select "Yes" (backup is to prevent cleaning errors, and if there is no abnormality in the system after cleaning, delete the backup), and just follow the prompts (the software can also kill in normal mode).

1. Press F8 when starting the machine until advanced options appear. Select Last Known Good Configuration and press Enter to repair it.

2. Press F8 to enter the safe mode, then exit, and select restart or shutdown to start, and then you can enter the normal mode (repair the registry).

3. If the fault still exists, please use the system that comes with the system to restore it to the state without this fault (or use recovery software to restore the system).

4. If the fault remains, use the system disk to repair it, open the command prompt and enter SFC/SCANNOW(SFC and/) to insert it into the original system disk repair system, and the system will automatically compare and repair it.

5. If the fault still exists, set the CD-ROM drive in the BIOS and insert it into the original system installation disk as the first boot device, and press the R key to select "Repair Installation".

6. If the fault still exists, it is recommended to reinstall the operating system.

There is a card or crash when running some program software.

Generally, the reasons for the crash when running some programs and software are: virus infection, loss of dynamic link library (. Dll) files, too little or too many fragments left on the hard disk, improper software upgrade, illegal software uninstallation or misoperation, too many startup programs, conflict of hardware resources, poor heat dissipation of CPU and other equipment, etc. When running some program software, the solution to the crash fault is as follows.

(1) First, check whether there are too many programs open on the computer. If so, close the program that is not used for the time being, and then check whether it is normal.

(2) If it is abnormal or there are not many open programs, then check whether a software has been upgraded. If it has been upgraded, uninstall and reinstall the software.

(3) If the software has not been upgraded, check whether the software has been illegally uninstalled or mishandled. If so, please reinstall the software.

(4) If there is no software uninstall or misoperation, then use anti-virus software to kill virus to see if there is any virus, if there is.

Viruses may be caused by viruses, so you can kill viruses.

(5) If there is no virus in the computer, then check whether the hard disk space is too small. If so, delete the unused files and defragment the disk.

(6) If the hard disk space is not small, then check whether the crash is regular. For example, the computer always crashes after running for a period of time or when running other large-scale game software, which may be caused by poor heat dissipation of CPU and other equipment. Open the chassis, and check whether the fan of CPU rotates and how the wind is. If the wind power is insufficient, replace the fan in time to improve the heat dissipation environment.

(7) If the heat dissipation of the computer is good, then use the hardware test tool software to test the computer to check whether it crashes due to poor hardware quality, and if so, replace the equipment.

(8) Finally, check whether there are conflicting hardware devices (conflicting devices are generally marked with yellow "!") In the device manager), if there is, delete it or reset its interrupt.

A crash occurred while using the device.

The solution to the crash when using the equipment is as follows.

(1) First, check whether the faulty hardware equipment is in good contact. If the faulty hardware device has poor contact, reconnect the faulty hardware device.

(2) If the faulty hardware equipment is in good contact, find out whether the hardware is hot-swapped, and if so, restart the computer.

(3) If there is no hot plug operation, then delete the driver of the faulty hardware device, reinstall the latest driver of the faulty hardware device, and check whether it is normal after installation.

(4) If the fault still exists, it may be a device driver problem, or the faulty hardware device is aging or incompatible with other devices. Use alternative methods to detect incompatibility and aging of hardware devices and troubleshoot them.

The computer crashed after upgrading.

The solution to the computer crash after upgrading is as follows.

(1) If the computer crashes after the upgrade, the cause of the crash is generally related to the upgrade. If you are upgrading computer hardware devices (such as memory and hard disk), first remove the upgraded hardware devices and then reconnect them to see if the computer is normal.

(2) If the fault still exists, replace the good hardware equipment of the same model and check whether the computer fault disappears. If it disappears, the fault is related to upgrading hardware equipment.

(3) If the fault still exists, it may be caused by other problems. Then, according to the above method, the cause of the fault is inquired and the fault is eliminated.

(4) If the computer is upgrading the BIOS program or the driver of the hardware device, first restore the upgraded program to the original program, and then check whether it is back to normal.

(5) If the fault returns to normal, it is a crash caused by upgrading the software; If the fault still exists, it may be caused by other problems. Then, according to the method described above, find out the cause of the fault and eliminate the fault.

Memory fault diagnosis: When it is suspected that the fault is caused by memory problems, the following steps can be followed for diagnosis and elimination.

Step 1: First restore the BIOS to the factory default settings, and then start the test.

Step 2: If the fault still exists, remove the memory, then clean the dust on the memory and motherboard, and see if the fault is eliminated after cleaning.

Step 3: If the fault still exists, then wipe the golden finger of the memory with an eraser, and install the boot test after wiping.

Step 4: If the fault still exists, install the memory into another slot and start the test. If the fault disappears, re-check whether the spring piece of the original memory stick is deformed. If there is, just adjust it.

Step 5: If the fault still exists after replacing the memory slot, use the replacement method to detect the memory. When good memory is installed on the motherboard, the fault disappears. May be the fault of the original memory; If the fault persists, there is a problem with the motherboard memory slot. At the same time, install the faulty memory on another good motherboard for testing. If it can be used normally, the memory is incompatible with the motherboard; If the same fault occurs on another motherboard, the memory quality is poor or damaged.

Excessive installation of antivirus software and excessive opening of monitoring software will also cause the system to run slowly or crash. I suggest you turn off all monitored software. If the system runs fast, you can adjust the monitoring switch appropriately and often kill viruses.

The system's own disk repair method: (Hard disk failure can also cause card or crash failure)

The specific steps are as follows (taking Windows XP as an example): Select the middle drive letter in my computer and click the right mouse button. In the pop-up drive properties window, select Tools → Start Check, automatically repair file system errors, scan and recover bad sectors, and then click Start. The scanning time will vary depending on the disk capacity and scanning options.

Bad hard disk will cause the computer system files to be damaged or lost, and the computer will not start or crash. Hard disk bad track can use NDD disk tool or Sca.