1) reduces the time to start the scroll bar.

Every time you start Windows XP, you have to walk the blue scroll bar several times. In fact, we can also reduce its scrolling time here to speed up the startup. 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.

2) Speed up the startup.

When shutting down in XP, the system will send a message to the running programs and remote servers, telling them that they should shut down the system and wait for the response before the system starts to shut down.

To speed up the startup, you can set the automatic end task first, and then look for:

HKEY _ Current _ User \ Control Panel \ Desktop, set the key value of AutoEndTasks to1; Then there is a "HungAppTimeout" under this branch, and its value is changed to "4000 (or below), and the default is 50000;

Finally, find HKEY _ local _ machine \ system \ current control set \ control \, and also set WaitToKillServiceTimeout to "4000"; Setting the shutdown speed in this way is obviously much faster.

3) close the debugger, Dr. Watson; ;

Dr.Watson is a self-contained system maintenance tool, which will be displayed when the program fails to load or crashes. Run drwtsn32 to delete everything except "Dump all thread contexts". Otherwise, once a program goes wrong, the hard disk will ring for a long time and take up a lot of space. If you have encountered this situation before, please find the user.dmp file to delete, which may save tens of meters of space. This is the scene of the wrong program, which is useless to us. Then open the registry, find the branch of HKEY _ local _ machine \ software \ Microsoft \ Windows ntcurrentversion \ AEDebug, double-click the Auto key name below it, and change its "numerical data" to 0.

Finally, press F5 to refresh to make the setting take effect, thus completely canceling its operation. In addition, the memory.dmp that appears when the screen is blue can also be deleted.

You can dump BSOD when you close it in My Computer/Properties.

4) Close System Restore:

Right-click "My Computer" on the desktop, select "Properties" and find "System Restore". If you don't install some software often, you can also remove it, which can save a lot of space.

5) Turn off Sleep Support:

Because the hibernation function takes up a lot of hard disk space, it is better to turn it off.

Console->; Power options-> Hibernate (don't tick)

6) MsConfig .

Most friends should be familiar with MsConfig, which is a built-in Windows installation tool. Click the Start menu, select Run, and then type msconfig in the input box and press enter. What we need to do is tamper with the label. Click it. This tab shows all programs that were running when Windows started. There are no life-and-death programs for Windows, so you can delete unnecessary programs at will. After removing some checkmarks, Windows will start faster and there will be more idle system resources.

7) Compressing folders is a very good optimization. WindowsXP has built-in right. ZIP file, we can browse the zip file as a folder. But the system needs to use some resources to realize this function, so disabling this function can improve the system performance. The implementation method is simple, just cancel the registration of zipfldr.dll, click Start-Run, and enter: regsvr32/u zipfldr.dll. Then get into the car.

8) Do not load DLL file *

After the browser is used, some DLL files will be cached in memory for a long time, and a considerable part of memory will be occupied by unused DLL files. To prevent this from happening, please find the following location in the registry: HKEY _ Local _ Machine \ Software \ Microsoft \ Windows \ Current Version \ Resource Manager. Next, create a two-byte value named AlwaysUnloadDLL with the value of 1. If you want to delete this optimization, just set the key value to 0 (or simply delete the key). Note: This optimization will take effect after Windows restarts.

9) Turn off error reporting

Console-> System-> Advanced-> Lower right corner-> Error Report-> Close.

10) Clear the * * * shared folder.

A rather unfriendly user interface of WindowsXP operating system is to display all * * * folders in the upper part of the "My Computer" window. If the user has set more * * * folders, a lot of * * * folder information will be listed whenever the "My Computer" window is opened. How to delete these information displays? Use the registry editor "HKEY _ Local _ Machine \ Software \ Microsoft \ Windows \ Current Version \ Explorer \ My Computer \ Namespace \ Delegated Folder", and there is a registry named {59031a47-3f72-4a7-89c5-5595fe630ee. The above changes can take effect without restarting.

1 1) Remove * * * enjoyment.

[HKEY _ LOCAL _ MACHINE \ SYSTEM \ current control set \ Services \ lanman server \ parameters]

" AutoShareServer " = dword:00000000

" AutoSharewks"=dword:00000000

12) Delete IPC$ management.

[HKEY _ LOCAL _ MACHINE \ SYSTEM \ current Control set \ Control \ Lsa]

" restrict anonymous " = dword:0000000 1

13) About turning off or turning on the preview function of AVI files (you can choose one of the two methods, and I use the method of modifying the registry myself).

1. Delete the following key in the registry to turn off this feature. It is best to back up the key values so that the preview function can be restored later.

[HKEY _ LOCAL _ MACHINE \ SOFTWARE \ Classes \ CLSID \ { 87 d62d 94-7 1 B3-4b 9a-9489-5 Fe 6850 DC 73 e } \ in proc server 32]

2. You can also deregister Shmedia.dll and open a command line window.

Execute the following instruction: "regsvr32/u Shmedia.dll".

Resume preview function instruction: "regsvr32 Shmedia.dll".

14) IE multithreading download

Open registry

"HKEY _ Current _ User \ Software \ Microsoft \ Windows \ Current Version", create two new ones.

REG_DWORD values are "maxconnectionsperwer" and "maxconnectionsper1_ 0server", and then assign the values you want, and the modification will not take effect until you restart Windows. I assigned it to "10" myself.

15) Set CPU:

WindowsXP cannot automatically detect the processor's L2 cache capacity, so we need to set it manually in the registry. First, open the registry (enter "Regedit" at runtime,

HKEY _ local _ machine \ system \ current control set \ control \ session manager \ memory management \, select "SecondLevelDataCache" and set it according to the processor you use. For example, piiicoppermin/P4 Willamette is "256", AthlonXP is "384" and P4Northwood is "5 12".

16) the method of losing weight in the partition where XP system is located.

1. Delete the system file backup sfc.exe/Purge cache (rarely used by ordinary users).

2. Delete the Driver.cab file (73mb) in the windows\drivercache\i386 directory of driver backup.

3. Cancel the system restore (overall, the system restore function is still good. It is recommended not to use any disks except those installed by xp. If there is not enough hard disk space one day, you can delete some earlier restore points through the system cleaner).

4. Delete the help file (delete more than 40 mb) (the file size of Chinese localization package is 92mb, so comrades who just started using xp had better not delete it).

Of course, the most important place to lose weight is the help document, which occupies 80~90 trillion sites. You can go to its "nest" (system partition \ your XP installation directory \ \ Help) and scan it out. In addition, you can delete system file backups during installation. These backups are located in the folder "System Partition \ Your XP Installation Directory \ \System32\Dllcache" (you can see by deleting the hidden attribute of this folder). The purpose of backup is that the system can be restored automatically, or you can restore it manually by typing SFC command on the command line. Of course, this will take up a lot of hard disk space. If you don't want to use this function, you can enter sfc /purgecache at the command prompt.

5. Delete the files under \WINDOWS\system32\dllcache (minus 200-300mb). (This is a backup dll file. As long as you copy the installation file, you can do it completely. In this case, you have nothing to say

6. Transfer my documents and IE's temporary folder (temp) to other disks (partitions). At the same time, it is good for the speed of the system and the hard disk. If you use a dual system, it is best to put the IE temporary files of the two systems in the same folder, which will speed up and save space. )

7. Transfer the virtual memory to another disk. (Just put these things and the temporarily downloaded files in a small partition, which is also convenient for sorting out the hard disk.)

8. Install the application software on other disks (this is also good for reinstalling the system and can save a lot of things).

9. If you install xp with ntfs, the site itself will be saved.

10, delete unnecessary input methods.

How to delete the input method completely

(1) The unnecessary input methods we deleted in the text and language service window were not actually deleted from the hard disk. Enter the control panel → regional and language options → language tab, uncheck the box in front of "Install files in East Asian languages", click OK at the prompt to delete unnecessary languages, and then restart to \ime\ in the installation directory of windowsxp. Just delete three directories, namely, chtime, imjp8_ 1 and imkr6_ 1, which are traditional Chinese, Japanese and Korean respectively. Congratulations, if you only use one input method, you can save 80MB of hard disk space. (Note: Administrators can delete it in safe mode)

(2) Delete unnecessary input methods

Everyone knows that you can delete unwanted input methods by right-clicking the input method icon in the lower right corner of the desktop, but you can see that the hard disk space has not decreased. Why? It turns out that Windows didn't delete the files related to the input method, so we have to delete them manually. The following is a list of files related to the input method that comes with Windows.

Full spell: Winpy.ime, Winpy.mb, Winpy.hlp, Winpy.cnt

Double spelling: Winsp.ime, Winsp.mb, Winsp.hlp, Winsp.cnt

Micro-spelling: Pintllime.dll, Pintlgab.imd, Pintlgai.imd, Pintlgb.imd, Pintlgd.imd, Pintlgdx.imd.

Pintlgie.imd、Pintlgnt.cnt、Pintlgnt.hlp、Pintlgnt.i96、Pintlgnt.ime、Pintlgrb.imd、

Pintlgri.imd、Pintlgs.imd、Pintlgsi.imd、Pintlgsx.imd、Pintlgu.imd、Pintlguc..imd、 Pintlphr.exe .

Intelligent ABC:Winabc.cwd, Abcsda.dll, Abcwin.exe, Winabc.ime, Winabc.ovl, tmmr.rem, user.rem,

Winabc.hlp、Winabc.cnt .

Zheng code: Winzm.ime, Winzm.mb, Winzm.hlp, Winzm.cnt

Internal code input methods: Wingb.mb, Wingb.hlp, Wingb.cnt

Table codes: Winbx.mb, Winbx.ime, Winbx.hlp, Winbx.cnt

1 1: Delete redundant keyboard layout.

Windows tries to be the darling of the world, so its keyboard layout is suitable for the use habits of all kinds of people in various countries. Open the Registry Editor and expand HKEY _ Local _ Machine \ System \ Current Control Set \ Controls \ Keyboard Layout.

Branch, we can see that Spanish (traditional), Danish, German (standard) and many other keyboard layouts are saved under this branch. If you can't use the keyboard layout of these languages, you can delete these subitems directly.

(Note: Don't delete American English)

12: Delete redundant locale.

Similar to the keyboard layout above, there are regional settings of Windows. Expand HKEY _ local _ machine \ system \ currentcontrolset \ control \ nls \ locale branch in the registry editor. Simplified Chinese users can completely keep only the key value "00000804", and others can be deleted mercilessly.

13: Turn off the Internet Time Synchronization function.

Browser settings

If synchronization is enabled, your computer clock will be synchronized with the Internet time server once a week. I suggest turning it off (a function of little use). Click Start → Control Panel → Date, Time, Language and Regional Options, and then click Date and Time → Internet Time.

14: Uninstalling useless attachments

Windows XP installation won't ask you which component to choose, and when you uninstall useless components by using Add/Remove programs, you find that many applications don't have the option to delete. How to delete these uncommon applications? You just need to go to the folder "System Partition \ Your XP Installation Directory \ INF" (take care to remove its hidden attribute), find a sysoc.inf file, double-click it to open it with Notepad, then enter ",hide" in the replacement dialog box (be careful not to lose the preceding comma or put it behind), then replace it with "empty" and then open "Add/".

Another feature that Windows XP inherits from Windows ME is the "system restore" function. If you don't want to waste disk space, you can say no to it by choosing Start → All Programs → Accessories → System Tools → System Restore. In the system restore interface, click "System Restore Settings" to enter the "System Restore Settings" window, and clear the "Turn off system restore on all drives" check box.

Under Windows XP, hibernation is enabled by default, so that your session content will be "hung on the hard disk", and there will be an extra hiberfil.sys file on your hard disk, which is equal to your memory capacity. You can also turn it off in the Control Panel → Power Options → Hibernation tab to free up space.

15: resist junk files

Of course, you can't create garbage at the same time. You should always pay attention to prevent Windows XP from generating junk files. If XP defaults to recording error events and writing debugging information when the system fails, we can completely abandon it. This method is the same as that in Windows 2000. Enter the tab of System Properties → Advanced → Startup and Recovery, clear "Write events to log file" and select "None" in the drop-down box of "Write debugging information".

16: Detailed explanation and suggestions for Windows XP services.

Services.msc, many services are useless. Opening them will only waste memory and resources. Affect the starting degree. Closing unimportant services can speed up startup and reduce the burden. Click Start → Run and enter the command "services.msc" to open the "Services" dialog box. (Note: You must log in as an administrator or a member of the Administrators group to complete this procedure. If your computer is connected to the network, network policy settings can also prevent you from completing this step. )

Right-click a service when setting, and you can choose to shut it down manually or automatically.

Automatically boot from Windows.

Manual: start automatically when needed.

Close to never beginning. (Red indicates the core service and cannot be closed)

Here are some services that are not commonly used:

Alarm-false alarm. Disable (manual)

Application layer gateway services: provide services supported by third-party networks/firewalls, and some firewalls/networks * * * need software. Take up 1.5 megabytes of memory.

Application management: used to set up, publish and delete software services.

Automatic update -windows updates automatically, without affecting manual update. Disable (automatic)

Background intelligent transfer service: this service was originally used to realize the send command to deliver messages. Disable (automatic)

Software backup. forbidden

Netmeeting Remote Desktop Sharing-Using netmeeting to enjoy the computer. Disable (manual)

NetLogon-Log in to the domain. If the LAN is in workgroup mode or individual user mode, please disable it.

Network connection-for Internet/LAN! automatic

Network DDE- Disabled (Manual)

Network DDE DSDM- Disabled (Manual)

This may be necessary if there is network access or ICS/ICF. (server-side) manual.

NTLMSecuritysupportprovider-security. forbidden

Nvidia driver assistant service: NVIDIA graphics help, close!

Performance Logs and Alerts-Record the running status of the machine, and write the logs or issue warnings regularly. guidebook

Automatically detect newly installed hardware. automatic

Portable Media Serial Number-Disabled (Auto)

Print Spooler-printer service, if closed, can't print, as the case may be. guidebook

ProtectedStorage-stores passwords for local and online services, including functions such as "auto-completion" when filling out forms. automatic

Qorsvp-Not required for individual users. guidebook

Remote Procedure Call (RPC)- System Core Service! automatic

Remote Procedure Call Locator-Manually Manage RFC Database Service

Remote Desktop Help Session Manager-Remote Help Service, Disabled (Manual)

Remote Registry-Remote Registry Operation/Modification. Large vulnerability, disabled (automatic)

Removable storage-Used for tape backup. forbidden

Routing and Remote Access-Routing Services. forbidden

Auxiliary Login-Assign the specified operation rights to users other than administrators. Manual (automatic)

Security account manager-IISAdmin is required like ProtectedStorage. Manual (automatic)

Security Center-windows Security Center can be disabled.

Server LAN file/print * * * as required. automatic

SSDPDiscoveryservice-No hardware uses this service. Is it better to disable self-viewing or keep it?

Shell hardware detection-unclear, automatic

Smart card-smart card service, which I have never used, accounts for 1.4 trillion, and can be turned off. guidebook

Smart Card Assistant-Smart Card Help, Manual

System event notification: record user login/logout/restart/shutdown information. Manual (automatic)

System Restore Service-System Restore Service is up to you. I choose to disable (automatic)

Task Scheduler: windows is scheduled as a service and is disabled (automatic).

Terminal service: To realize remote login to local computer, fast user switching, remote desktop and other functions, shut down without these functions. Disable (manual)

Theme-If closed, there will be no beautiful interface. automatic

Telephone-dial service. If you don't need dial-up internet access, turn it off.

Telnet: Big loophole, this is the first thing I shut down. The telnet command in dos has nothing to do with 2 megabytes of memory. Disable (manual)

TCP/IP Netbios Assistant-If your network does not use Netbios or WINS, please disable it.

Uninterruptible power supply. guidebook

Universal Plug and Play Device Host: Same as SSDP Discovery Service, disabled.

Upload Manager-Used to transfer files between the server and the client. Simple file transfer doesn't need this! Manual (automatic)

Shadow Copy-Same as MSSoftwareShadowCopyProvider. guidebook

Webclient-may be related to the future. Net technology, so I use it manually.

WindowsAudio- no sound when turned off! automatic

Online time proofreading. Manual (automatic)

Windows installer: MSI installation service for Windows. It is recommended to set it manually.

Windows Image Capture (WIA): Provides image capture for scanners and cameras. If you don't have these devices, it is recommended to start them manually or simply turn them off.

Windows management infrastructure-core services. automatic

Windows management information driver extension-not as important as above, manually.

Wireless zero configuration-wireless network setup service. Manual (automatic)

WMI performance adapter-unclear. Manual or off! Take up 6 megabytes of memory.

Computer Browser-a service used to browse LAN, but it doesn't affect browsing if it is closed! Manual (automatic)