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How to improve the running speed of the computer?
I have collected some XP optimization materials for reference.

1, accelerate online neighbors

Visiting online neighbors in Windows XP is quite annoying. The system will search its own * * * shared directory, printers that can be used as a network * * *, and planned tasks related to the network, and then it will be displayed. Obviously, this speed will be much slower than in Windows 9x. In fact, we don't use these functions. Instead of using them, we might as well delete them, which will obviously speed up the speed. Open the Registry Editor and find HKEY _ Local _ Machine/Software/Microsoft/Windows/Current Version/Discovery/Remote Computer/Namespace. Delete {2227A280-3AEA-1069-A2DE08002B 30309D} (printer) and {D6277990-4C6A-1F8D87-00060F5 BF} (.

2, reduce 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.

3. Menu display time

In order to achieve visual realism, the menu in Windows XP will slide out when it is opened, but it will also slow down the opening speed. We can find the "MenuShowDelay" primary key under HKEY _ Current _ User \ Control Panel \ Desktop, and change its value to "200" (recommended) to remove the menu delay effect. The default is "400". Can be set to "0" (not recommended)

4, improve the broadband speed

PRO Professional Windows XP reserves 20% bandwidth by default, which has no effect on our individual users. It is better to make full use of it than to leave it idle.

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.

Note: Users of Windows XP Home Edition do not have to change these settings.

5. Automatically close the program that stops responding.

In the Windows XP operating system, this setting enables Windows XP to automatically close an application when it is diagnosed that it has stopped, without troublesome manual intervention. To realize this function, click Start → Run, enter "RegEdit" to open the Registry Editor, find HKEY _ Current _ User \ Control Panel \ Desktop Branch, and set the key value of AutoEndTasks to 1.

6. Turn off the "Internet Time Synchronization" function.

"Internet time synchronization" is to synchronize your computer clock with the Internet time server once a week, so that your system time will be accurate, but this function is of little use to us, and may also cause the problem of crash. Generally speaking, you only need to synchronize the time once after installing Windows XP. So we're going to turn it off. To do this, click Start/Control Panel/Date, Time, Language and Regional Options, and then click Date and Time /Internet Time.

7. Turn off the function of "automatically sending error reports"

Everyone must have had this experience in Window XP. Once the program terminates abnormally, the system will automatically pop up a dialog box asking you whether to send an error to Microsoft. This is the "automatic error sending" function in XP, which can send error information to Microsoft's website. Although Microsoft has repeatedly vowed that it can provide strong security and will not reveal personal privacy, the information sent to Microsoft may contain the document information you are browsing or editing, which may contain personal privacy or company secrets, so if you want to protect your due rights, we should not hesitate to turn off this function. To do this, click Start/Control Panel/System/Advanced, click the Error Reporting button, and then select Disable Error Reporting. The following "but notify me when a serious error occurs" can be selected.

8. Set up pre-reading to improve the speed.

Windows XP uses the new technology of pre-reading settings to improve the system speed. If your computer is well configured and has more than PIII 80012m of memory, you can make the following changes: click "Start/Run", type "regedit" and open the registry. Locate [HKEY _ Local _ Machine-System-Current Control Set-Control-Session Manager-Memory Management-Prefetch Parameters-Enable Prefetch] and set the value to 0. 1, 2,3 (0-disable, 1- read-ahead application, 2- start read-ahead, 3- both), it is recommended to use "3", which can reduce the startup time.

8. 1, clear the pre-read file.

After using Windows XP for a period of time, the files in the pre-read folder (C:Windows\prefetch) under the installation directory will become very large, and there will be dead-chain files in it, which will slow down the system time. I suggest you delete these files regularly.

9. Use the L2 cache of CPU to speed up the efficiency of the whole machine.

In [HKEY local machine] → [system] →; [Current Control Set]-> [control]-> [SessionManager], in the right window of [MemoryManagement], change the numerical data of [SecondLevelDataCache] to the same decimal value as CPU L2Cache: for example, P4 1.6G, an L2 cache is 5 12Kb, and the numerical data is changed to the decimal value of 5 12.

10, automatically ends the task when it is turned off.

When you turn off your phone, sometimes an annoying dialog box will pop up to remind you that a program is still running, whether to end the task or not. In fact, with a little modification, you can let Windows automatically end these programs that are still running. Open HKEY _ Current _ User Control Panel desktop directory in the registry, and change the key value of AugoEndTasks to 1.

Note: You may not find the AutoEndTasks key value. If there is, just create a string value and change it to this name, and the value is set to 1.

1 1. Close Dr. Watson.

Click "Start/Run" and enter "drwtsn32" command, or "Start/All Programs/Accessories/System Tools/System Information/Tools/Dr. Watson" to call up Dr. Watson in the system, and only keep the option of "Dump all thread contexts", otherwise it will take a long time to read the hard disk once the program goes wrong, occupying a lot of space. If this has happened before, please look for the user.dmp file, which can save tens of MB of space after deletion.

12, reducing the waiting time of disk scanning.

Although WindowsXP claims to be stable, it doesn't always crash. Occasionally it will turn your face blue. After the illegal operation, the system will automatically scan, and large chunks of E text will appear, telling you that the system has just ended abnormally. Now you need to check whether there are any errors, but it will take some time to start, so we can type "chkntfs/t:0" in dos, indicating that the waiting time is 0 seconds.

13, win XP to lose weight

(1). Delete the system file backup sfc.exe/Purge cache.

⑵. Delete the Driver.cab file (73mb) in the windows/driver cache/i386 directory for driver backup.

(3). Delete the help file (minus more than 40 mb).

(4) Delete the file /WINDOWS/system32/ dllcache (minus 200——300mb), which is a spare dll file. As long as you copy the installation file, you can do it completely.

5. Delete the input method (Japanese, Korean, Simplified Chinese input method, 84.5MB) that is not used under /windows/ime.

14. Automatically close the program that stops responding when closing.

[HKEY _ User]-> [.Default]-> [Control Panel], and then change the numerical data of [AutoEndTasks] to "1" in the right window of [Desktop].

1. Accelerate shutdown.

The shutdown speed of Windows XP is slower than the startup speed, especially some tasks need to be completed manually, which further delays the shutdown speed. Therefore, to speed up the shutdown, we must first turn on the automatic task ending function of Windows XP. The specific steps are: find "HKEY _ Current _ User \ Control Panel \ Desktop" from the registry, and set the key value of "AutoEndTasks" to 1.

Then change "HungAppTimeout" to "4000 (or below)" (default is 5000), and the key value is also under "HKEY _ Current _ User \ Control Panel \ Desktop"; The last step is to find "HKEY _ Local _ Machine \ System \ Current Control Set \ Control" and set WaitToKillServiceTimeout to "4000"; After this setting, the shutdown speed is obviously accelerated.

2. Cancel XP's support for ZIP.

By default, Windows XP turns on support for ZIP files, which takes up some system resources. You can choose Start → Run, type "regsvr32/u zipfldr.dll" in the Run dialog box, and press Enter to cancel XP's support for zip decompression, thus saving system resources.

3. Improve the system cache

Similarly, in the location of "HKEY _ local _ machine \ system \ current control set \ control \ session manager \ memory management", the key value of "LargeSystemCache" under it is changed from 0 to 1, and Windows XP will allocate all system memory except 4M to the file system cache, so that the XP kernel can run in the memory, which greatly improves the system speed.

Generally speaking, this optimization will greatly improve the system performance, but it may also reduce the performance of some applications. It should be noted that the activation of LargeSystemCache must have more than 256M of memory, otherwise it should not be changed easily.

4. Turn off the automatic restart function

Windows XP will suddenly restart when it encounters a serious problem. You can cancel this function from the registry. Open the registry editor and find "HKEY _ local _ machine \ system \ current control set \ control \ crash control". Change the Dword value of the AutoReboot key to 0, and the setting will take effect after restarting.

5. Modify the registry to reduce the waiting time of pre-reading and progress bar.

A progress bar will appear when Windows XP starts. We can modify the registry so that the progress bar will enter the login screen only once.

Select the Run command in the Start menu, type the regedit command in the Run dialog box, and press Enter to start the Registry Editor. Find the HKEY _ local _ machine \ system \ current control set \ control \ session manager \ memory management \ prefetch parameter, select the EnablePrefetcher key under it, and change its key value to "/kloc-

6. Reduce the waiting time of startup disk scanning.

When the restart caused by abnormal shutdown or crash is recorded in the Windows log, the system will automatically run ScanDisk at startup. By default, each partition will wait 10 seconds before scanning. If each partition has to wait 10 seconds to start scanning, plus the time required to scan itself, it will take a long time to complete the startup process. In this case, we can set the waiting time for canceling disk scanning, or even prohibit scanning disk partitions.

Select "Start → Run" and type "chkntfs /t:0" in the run dialog box to set the waiting time of disk scanning to 0; If you want to ignore scanning a partition, such as drive C, when the computer starts, you can enter the command "chkntfs/x c:"; If you want to resume the scanning of drive C, you can use the command "chkntfs /d c:" to restore all the default settings of chkntfs except automatic file check countdown.

7. Butvez

Bootvis is a startup optimization tool provided by Microsoft, which can improve the startup speed of Windows XP.

Using BootVis to improve the startup speed of Windows XP must be done in the correct order, otherwise it will not have the effect of speeding up. The correct operation method is as follows:

Start Bootvis, select the options command under the Tools menu from its main window (as shown in Figure 2), type the installation path of Bootvis in the symbolic path, such as "C:\Program Files\Bootvis", and click "Save" to exit.

Select Next Boot from the Tracking menu, and the Repeat Tracking dialog box will pop up. Click "OK" button, and BootVis will boot Windows XP to restart. The default restart time is 10 second.

After the system restarts, BootVis automatically starts running and records the startup process, generates the related BIN file of the startup process, and automatically names this record file as TRACE_BOOT_ 1_ 1. After recording the startup process file, the program will restart the BootVis main interface and select the newly generated startup process file "TRACE_BOOT_ 1_ 1" from the file menu.

"CPU> has several specific legends for us to analyze, such as usage, disk I/O, disk usage, drive delay, etc., but it is best to let the BootVis program analyze automatically: select the system optimization command from the tracking menu, and the program will restart the computer and analyze the startup process file, thus making the computer start faster.