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My C drive is very small, but XP system accounts for more than1g. Who can tell me how to slim down XP system?
First, the system optimization settings.

1. Delete attachments imposed by Windows:

1) modify winntinfsysoc.inf with notepad, use the find/replace function, enter, hide (English comma followed by hide) in the find box, and set the "Replace with" box to be empty. And choose to replace all, so that all hiding is removed,

2) Save and exit,

3) Run Add and Remove again, and you will see several options in Add and Remove Windows components; This can delete many useless attachments.

2. 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 subbranch of HKEY _ local _ machinesoftwaremicrosoftwindows ntcurrentversionaedebug, double-click the Auto key name below it, change its "numerical data" to 0, and finally press F5 to refresh the setting to 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.

3. Close System Restore: Right-click My Computer on the desktop, select Properties, and find System Restore. If you don't often install some software (are you better than me), you can also remove it, which can save a lot of space.

4. Turn off hibernation support: Because hibernation takes up a lot of hard disk space, it is best to turn it off.

Console- Power options-? Hibernate (don't tick)

(blues note: I think hibernation is still very useful. )

5. Turn off unnecessary services

Click Start → Settings → Control Panel. Double-click Administrative Tools → Services, and you will see a list of services, some of which have been started and some of which have not. Right-click the service you want to configure, and then click Properties. Select "Automatic", "Manual" or "Disabled" on the General tab, where "Automatic" means that Windows XP automatically starts the service every time the system starts; "Manual" means that Windows XP will not automatically start the service, but manually start the service when you need it; Disabled means that starting the service is not allowed. In the actual configuration, you can turn off the service by selecting Manual or Disable. Manual function is recommended, so that some temporary services can be started at any time.

Some services are necessary for Windows XP and cannot be shut down, otherwise the system will crash. As for the functions of various services, we can view them by double-clicking the service or hovering the mouse over the service name. The description of the specific service is easy to understand, and you can choose whether you want it or not. The modification method is: select the disabled service and right-click and select' Properties'? Stop and set the Startup Type to Manual or Disabled.

6. Accelerate XP switching.

1) shortens the waiting time.

Open the Registry Editor and find HKEY _ Local _ Machine System Current Control Settings Control.

Set WaitToKillServiceTimeout to: 1000 or less. (Original setting value: 20000)

Locate the desktop key of HKEY's current user control panel and set it.

WaitToKillAppTimeout is changed to 1000 (original setting: 20000), that is, only wait 1 second when closing the program. Change the HungAppTimeout value to: 200 (original setting value: 5000), which means waiting for 0.5 seconds when the program makes an error.

2) Let the system automatically close the program that stops responding.

Open the HKEY _ Current _ User Control Panel desktop key in the registry and set the AutoEndTasks value to 1. (Original setting value: 0)

3)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. XP prefetcher

Windows XP comes with a service called Prefetcher, which initializes the management program when Windows starts, and the specified program can be loaded quickly in future use. By default, the prefetcher is on, but its performance can be further improved. Open Registry Editor and locate:

HKEY _ Local _ The current control settings of the machine system control the memory of the session manager.

ManagementPrefetchParameters, which has a key named EnablePrefetcher, and its value is 3 in most cases. The recommended setting value is 5. On my computer, it works best when it is set to 5. You can try different values at will until you find the one that suits you best.

You can also disable the prefetcher by setting the value to 0. However, unless it is for testing purposes, most people are not stupid enough to set it to 0.

8, compressed folder

This is a very good optimization. Windows XP has built-in support for. 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. Cancel the registration of zipfldr.dll. Click start? Run, type: regsvr32/u zipfldr.dll. Then get into the car.

9. Don't load DLL files.

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, locate the following location in the registry:

HKEY _ Local _ Machine Software Microsoft Windows Security Edition Browser

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.

10, completely turn off the file protection function of Windows XP. Use this trick with caution.

Find HKEY _ local _ machine software Microsoft Windows NTCurrentVersionWinlogon from the registry, and change the key value of "SFCDisable" to "FFFFFF9D". If you need to re-enable this feature, just reset it to "0".

1 1. Manually specify the process sequence to be viewed.

Press the Control+Alt+Delete key at the same time, and then click the "process" tab, and you will see a dialog box as shown in the above figure, where you can see all the processes currently running. If you want to allocate more process time to a program, such as 3D Studio Max, just right-click the process and move the mouse pointer down to Set Priority. (Set Priority) ",and then select the priority you want the program to have. When I receive an email, I will set 3DMAX as "standard", but when I leave the computer, I will upgrade its priority to the highest "real-time", so that the computer can process 3D actions more intently and quickly.

12. Turn off error reporting

Console- System- Advanced- Lower right corner- Error report- close

13. Speed up the window display: We can modify the registry to change the popup of the window from the taskbar and minimize the action of returning to the taskbar. The steps are as follows: Open the Registry Editor and find HKEY _ Current _ User.

Control PaneleddesktopWindowMetrics subbranch, and find the MinAniMate key value in the right window, with the type of REG_SZ. By default, the value of this key value is 1, which means that the animation displayed in the window is open. If it is changed to 0, animation is prohibited. Then, select the Logout command from the Start menu to activate the changes you just made.

14, remove the "update" option: For most users, the Windows Update function of Windows XP seems to have little effect, so we can remove it. The operating steps are as follows: Open the Registry Editor and find.

HKEY _ Current _ User Software

Explorer subbranch, select the "New" command under the "Edit" menu to create a new value of type REG_DWORD named NoCommonGroups. Double-click the newly created NoCommonGroups subitem, enter the key value "1" in the Edit String text box, and then click OK to restart the system.

15. Modify the login background mode of Windows XP: the monotonous login mode for a long time may make you bored. We can change it to your favorite pattern through the registration form. The steps are as follows: Open the Registry Editor and find the HKEY user. The default control panel desktop subitem branch, and double-click the wallpaper. Enter the path of the picture you choose, such as: c: documents and settings, my document, my picture mypic.bmp, click OK, then find Tilewallpaper, double-click it and enter the key value "1", and restart the system to see the effect.

16. Modify the background color when logging in: If you still want to modify the background color when logging in, you can follow the following steps: Open the registry editor and find the subbranch of HKEY _ user. DefaultControlPanel color, and double-click the background item name under the subitem branch to open the Edit String dialog box. Enter key values representing colors in the "Numerical Data" text box (for example, the RGB value of black is 000, the RGB value of white is 255 255 255, and the system default value is 5811kloc-0/65), and click "OK" to restart the system.

17. Set startup information or add warning information: If you want to display some personalized information defined by yourself when starting Windows XP, you can follow the following steps: Open the Registry Editor, find the sub-branch of HKEY _ Local _ Machine _ Software Microsoft Windows NTCurrentVersionWinlogon, and double-click the key name under it. Open the edit string window, enter the title of the information dialog box in the numeric data text box, such as "Hello, welcome to use this machine", then double-click the LegalNoticeText, and enter the warning message you want to display in the "Edit String" window that appears later, such as "Please don't modify the settings at this level at will, thank you!" , click the "OK" button, restart, and you will see the modified effect.

18. Keep the desktop settings unchanged every time we start: We can protect our desktop settings by modifying the registry. No matter what changes are made, the desktop will be restored after restarting. The steps are as follows: Open the Registry Editor and find the current version policy of HKEY _ Current _ User soft window.

Explorer subbranch, find NoSaveSettings under it, the type is REG_SZ, and change its key value to "0", or delete the key item directly, and restart the system to make the settings take effect.

19. Customize the button color at will: Although Windows XP itself has various window display schemes, users want to define the color of a certain part, such as changing the color of the button from black to blue or red. At this time, it is necessary to modify the registry. The steps are as follows: Open the Registry Editor and find the subbranch of HKEY _ Current _ User Control Panel color. Double-click Bottontext below it, change its key value to the value of the color you want in the opened dialog box, such as red 255 0 0, click OK, and restart the system to see the effect. At this time, the text color on the button will turn red, and you can also modify the parameters such as the width, height and background of the button.

20, modify the right mouse button menu

We know that the right mouse button menu can be modified through the registry in 98, but it can also be modified in WinXP. The method is as follows: Take adding "Browse here with DOS window" to the right mouse button menu as an example.

1) Open the registry editor, find HKEY _ class _ root shell, then select it, click the right mouse button, create a new primary key, name it DOS, then select a new primary key, double-click the default string value on the right, enter "Browse here with DOS window" in the pop-up dialog box, and then select a new primary key to create a new primary key. Name it "command", select the "command" primary key, and change the default value to "cmd.exe/k `cd% l`".

2) Check: Press the right mouse button on any folder, and you will see "Browse here with DOS window" in the pop-up menu. Choose to browse here with DOS window, press the left mouse button to see if the DOS window pops up!

2 1, modify the system ID number (ID number is very important in WinXP).

Under the general label in the system properties, we can see a series of numbers, such as: 55661-005-0809362-22169 and so on. This is the ID number. The ID number of each set of genuine WinXP is different (should you guess my purpose? ), then can we modify it? Of course (nonsense! If not, there is no need to write this article. Come with me and see what I can do!

The 1)ID number is stored in the registry. Mainly under these key values:

The string ProductId registered by HKEY local machine software web browser.

HKEY _ Local _ Machine Software String product identification of Microsoft user information/* If you are not registered with Microsoft, */

The string ProductId of HKEY _ local _ machine software MachinesoftwareCrosoftWindowsCurrentVersion.

HKEY _ local _ machine software Microsoft Windows ntcurrentversion string ProductId.

The above four digits are the key values of the ID stored in the registry, and should be modified at the same time. After the modification is completed, check the general label in the system properties to avoid the failure of modification and id recovery.

22, modify the version number:

There is an internal version number of Windows (official version: 2600.xpclient.010817-1148), and this version number is also stored in the registry. The specific location is HKEY _ local _ machine software Microsoft Windows ntcurrentVersion, which is recorded by a string. You can modify the version number of XP by modifying the string named BuildLab.

23. Delete files from the hidden trash can.

The default location of the Windows XP trash can is in the lower right corner of the desktop, above the bottom system tray. If users open multiple windows, it will block the trash can, making it impossible for users to drag files and folders to the trash can. To this end, Microsoft has made a very humanized design. When the user drags a batch of files and moves them to the lower right corner of the desktop, the user can drag the mouse to move all the files to the blank area of the taskbar at the bottom of the desktop and stay there for a few seconds. At that time, all open windows will be automatically minimized, allowing users to drag files to the trash can. In addition, regardless of whether the multiple open windows are maximized or not, users can achieve the effect of minimizing all windows by performing the above operations.

24. Music catalog pictures can be set at will.

Windows XP provides many more advanced management functions than the previous Windows operating system, including album generator, which can automatically put album cover pictures into music folders saved by users (these music files are usually WMA files of Microsoft). Although this function is very convenient, there are some problems. For example, if some users previously transcribed some music CDs into MP3 format and saved them on the hard disk, although users can download the covers of CDs from some music websites such as' www.cdnow.com' and' www.amguide.com', they can only manually add these covers to each music folder. This takes a long time, and once the user reinstalls the operating system, he will have to repeat the above complicated operations.

How to solve this problem? It's not complicated. When users download the music album cover picture, please save the picture file name as' folder.jpg' and put it in the corresponding music folder, so that Windows XP system will automatically default to the thumbnail picture of this folder. If users use Media Player for Windows XP (MPXP) player to play music files, the system will automatically display the album cover picture. After this operation, there is no problem even if the user reinstalls the operating system in the future.

In addition, if the user needs, when saving the above' folder.jpg' file, he can also save a smaller picture file named' Album Artsmall.jpg'. The advantage of this is that if the user uses MPXP player to play music files, but the player's window is less than 200 X 200 pixels, the player can directly display this smaller picture. Otherwise, the player needs to process' folder.jpg' and adjust its size to display it in a smaller window, which will naturally affect the speed of file calling.

25. Easily defragment the hard disk

After the computer is used for a period of time, the hard disk will produce a large number of file fragments, and users need to call the disk defragmenter regularly to clean it up. To this end, here is a method that can make it easier for you to call the defragmenter.

Users use Notepad to edit the registry import file named context_defrag.inf' and enter the following contents in the file:

; Context _ Defragmentation. Medium-range nuclear force

; Add defragmentation to the right-click context menu of Windows XP.

[Version]

signature=`$CHICAGO$ '

[Default Installation]

AddReg=AddMe

[Address]

DEFRAG.EXE HKCR,` DriveShellDefragcommand `,,` 1 '

After editing, right-click the file and select Install. After installation, a text menu will be added to the Windows XP operating system. When the user needs to tidy up the hard disk, open "My Computer", select the drive letter of the hard disk to be tidied up with the right mouse button, and select "defrag" in the pop-up text menu. At this time, the system will automatically call the built-in "defrag.exe" program to tidy up the hard disk.

If the user needs to delete the above information installed in the system registry, he can use regedit.exe Registry Editor to edit and modify it. The specific operation is to find the directory entry' HKEY _ Classes _ rootdriveshell', delete the' defrag' folder in it, and finally close the registry editor.

26. Clear the * * * enjoyment folder.

A rather unfriendly user interface of Windows XP operating system is to display all * * * shared folders in the upper part of the "My Computer" window. If users set more * * * shared folders, then every time they open the "My Computer" window, a lot of * * * shared folder information will be listed. How to delete these information displays? Use Registry Editor and find the primary key "HKEY Local Machine Software Microsoft Windows Current Version Explorer My Computer Namespace Agent Folder". There is a subkey named {59031a47-3f72-4a7-89c5-5595fe6b30ee} under this primary key. Deleting this subitem can clear the information of those * * * shared folders. The above changes can take effect without restarting.

27, display * * * enjoy setting label.

In Windows 2000 operating system, it is very simple for users to set the * * * enjoyment attribute of folders. Just right-click the folder and select Properties to see the * * * Enjoy Settings tab. However, it is complicated to set the folder * * * in Windows XP system, and users cannot see the setting label of * * * through the above operations. The specific modification method is as follows: open the tools in my computer, select folder properties, bring up the view tab, scroll to the bottom in the advanced settings section to cancel the selection before' Use simple file sharing (recommended)', and cancel the selection if there is Mickey Mouse in the options bar. In this way, users can modify folder properties as easily as using Windows 2000.

28. Call the system sound scheme

Compared with the previous Windows operating system, Windows XP provides a better sound scheme, but the system does not call this scheme by default. In order to activate this scheme, we need to do the following: open the control panel, select the item "Sound, Voice and Audio Devices", find the taskbar of "Modify Sound Scheme", and select "Windows Default" in the opened dialog box. At this time, you will be prompted whether to save the previous sound scheme settings. You can choose No and click OK to finish the modification.

29. Speed up the display of the start menu.

The default start menu of Windows XP system is slow to display, but users can edit the registration key value to speed up the display. The specific method is to open the registry editor and look for the' HKEY _ Current _ User control panel desktop MenushowDelay' primary key. The default value of the system is 400. Users can lower the key value appropriately according to their own preferences, and the minimum value can be set to "0". If this method doesn't work, please select "Display Properties" in the control panel, select "Advanced" in "Display Effect" and deselect "Show menu shadows" to speed up the display of the start menu.

30. Make the welcome window clearer.

The display effect of Windows XP system has been greatly improved, mainly because it adopts a clear technology called' ClearType', which makes users who use laptops and liquid crystal displays feel different effects from previous systems when running Windows XP operating system. However, because this cleaning effect can only be called after Windows starts, the welcome window at system startup still cannot achieve this effect. In order to make the welcome window clearer, users can use the Registry Editor to modify and find these two primary keys.

` (default user) HKEY user. Default Control Panel Desktop Font Smooth

(string values) ` and ` HKEY _ users. Default control panel desktop Fontsoftingtype.

(hexadecimal DWORD value) `, change the key value to "2", so as to achieve a clear display effect.

3 1. It is forbidden to automatically call Windows Messenger at startup.

In order to promote the instant chat program Windows Messenger launched by Microsoft, the default setting of Windows XP operating system is to call this program when the system starts. But if you are not used to using this program, you can do it by deleting the key' HKEY _ Current _ UserSoftwareMicrosoft Windows current version runmsmsgs'.

32. Display "Hibernate" in the shutdown dialog box.

The default setting of Windows XP is that there is no option to put the system into hibernation in the shutdown dialog box, and the operation of displaying this option is very simple. When the shutdown dialog box appears, the user can press the SHIFT key at the same time, so the "Hibernate" option appears.