Performance Optimization of the XP registry-guide to using the registry

Performance Optimization of the XP registry-guide to using the registry

1. Speed up startup and Shutdown

In [start] --> [run] --> type [Regedit] --> [HKEY_CURRENT_USER] --> [Control Panel] --> [desktop], change the value of the string value [hungapptimeout] to [200] and the value of the string value [waittokillapptimeout] to 1000. in addition, in [HKEY_LOCAL_MACHINE] --> [system] --> [CurrentControlSet] --> [control], change the value of the string value [hungapptimeout] to [200]. change the value of [waittokillservicetimeout] to 1000.

2. automatically close the stop responseProgram

In [start] --> [run] --> type [Regedit] --> [HKEY_CURRENT_USER] --> [Control Panel] --> [desktop], change the value of the string value [autoendtasks] to 1 and restart.

3. Clear unused DLL files in the memory

In [start] --> [run] --> type [Regedit] --> [hkkey_local_machine] --> [software] --> [Microsoft] --> [windows] --> [CurrentVersion], add an item [alwaysunloaddll] in [explorer]. The default value is 1. Note: If the default value is [0], this function is disabled.

4. Accelerate broadband access

(1) home version: in [start] --> [run] --> type [Regedit] --> in [HKEY_LOCAL_MACHINE] --> [software] --> [policies] --> [Microsoft] --> [windows ], add an item named [psched] and add a DWORD Value [nonbesteffortlimit] To the right window of [psched]. The value is 0.

(2) Commercial Version: In [start] --> [run] --> type [gpedit. MSC], open the Local Computer Policy, select [Computer Configuration] --> [management template] --> [network] --> [QoS packet scheduler] In the left window, double-click "restrict retainable bandwidth" in the window on the right, select "enabled", and set "Bandwidth limit (%)" to 0 Application --> OK, restart.

5. Speed up menu display

In [start] --> [run] --> type [Regedit] --> [HKEY_CURRENT_USER] --> [Control Panel] --> [desktop], change the value data of the string value [menushowdelay] to [0]. If you think the menu display speed is too fast, but you cannot adapt to it, you can change the value data of [menushowdelay] to [200]. restart.

6. Accelerate the auto update rate

In [start] --> [run] --> type [Regedit] --> [HKEY_LOCAL_MACHINE] --> [system] --> [CurrentControlSet] --> [control] --> [update], change the value data of DWORD [updatemode] to [0] and restart.

7. Speed up the pre-read capability and improve the boot speed

Windows XP pre-read setting can increase system speed and speed up startup. Click Modify to further utilize the CPU efficiency: in [start] --> [run] --> type [Regedit] --> [HKEY_LOCAL_MACHINE] --> [system] --> [CurrentControlSet] --> [control] --> [sessionmanager] --> [memorymanagement], in the window on the right of [prefetchparameters], change the value data of [enableprefetcher] as follows. For example, we recommend that you change the value data to 4 or 5 when using piII 800 MHz CPU or higher, otherwise, we recommend that you retain the default value 3.

8. CPU L2 cache is used to accelerate overall performance

In [start] --> [run] --> type [Regedit] --> [HKEY_LOCAL_MACHINE] --> [system] --> [CurrentControlSet] --> [control] --> [sessionmanager], in the right window of [memorymanagement], change the value data of [secondleveldatacache] to the same decimal value as the CPU L2 cache: for example, the L2 cache of P4 1.6g A is kb, the numeric value is changed to 512 in decimal format.

9. Run the defrag program when you start the computer.

In [start] --> [run] --> type [Regedit] --> [HKEY_LOCAL_MACHINE] --> [software] --> [Microsoft] --> [dfrg] --> [bootoptimizefunction], set the string value [Enable] to Y equal to enable and N equal to disable.

10. automatically shut down the stop Response Program upon Shutdown

In [start] --> [run] --> type [Regedit] --> [HKEY_USERS] --> [. default] --> [control panel], change the value of [autoendtasks] to 1 in the right window of [desktop], and log out or restart.

11. Run programs in different Memory Spaces

Find the hkey_current_usersoftwaremicrosoftwindowscurrentversionpoliciesexplorer sub-key, set memcheckboxinrundlg to 1, and the "run" option in the "Start" menu will be added.

12. modifying user folders is prohibited.

Find hkey_current_usersoftwaremicrosoftwindowscurrentversionpoliciesexplorer. To lock the physical locations of user folders such as "image favorites", "My documents", "favorites", and "my music", set the following keys to 1: disablemypicturesdirchange, disablepersonaldirchange, disablefavoritesdirchange, disablemymusicdirchange

13. display the button for ing network drive

Find the hkey_current_usersoftwaremicrosoftwindowscurrentversionpoliceradvanced sub-key and set mapnetdrvbtn to 1. The button for ing the network drive will appear on the toolbar of Windows resource manager and my computer.

14. Reduce the browsing LAN latency

Like Windows 2000, XP has an annoying latency problem when browsing the LAN, but it is hard to find information about this problem. If you browse a Windows 9x machine, for example, input "\ computername" in the address bar of a network neighbor, the XP machine will check the "Task Plan" on the machine it is connecting ". This search process may cause a latency of up to 30 seconds. If you open a shared resource directly, for example, enter "\ computernameshare" in the address bar of the network neighbor, there will be no such delay. To avoid XP searching for "Task Scheduler" operations and speed up browsing the network, you can delete the hkey_local_machinesoftwaremicrosoftwindowscurrentversionpolicerremotecomputernamespace {D6277990-4C6A-11CF-8D87-00AA0060F5BF} subkey. The type of the key is REG_SZ.

15. A new method for enabling a program to run upon startup in XP

Click "run" in the "Start" menu and enter "Regedit" in the "run" dialog box to open the Registry Editor. Sequentially expand the Registry to HKEY_CURRENT_USER \ Software \ Microsoft \ Windows NT \ CurrentVersion \ windows. Here, create a new string value by right-clicking the primary key "Windows ", select "new"> "string value" in the pop-up menu and name the string value "LOAD ". Double-click "LOAD" and change its key value to the program path that runs automatically upon startup in the pop-up window. Note that the short file name should be used, that is, "C: \ Program Files" should be written as "C: \ progra ~ 1 ".

16. Shielding hotkeys IN THE SYSTEM

Click Start> Run, enter regedit, and open the Registry Editor. Open HKEY_CURRENT_USER \ Software \ Microsoft \ Windows \ CurrentVersion \ Policies \ Explorer in sequence to create a dual-byte value named "nowindows keys" and the key value is "1 ", in this way, you can disable the use of system hotkeys to execute some disabled commands. If you want to restore the data, set the key value to 0 or delete the key.

17. disable unnecessary sharing.

Security issues have always been of concern to everyone. To ensure the security of your system, some unnecessary sharing should still be disabled. Use NotePad to edit the following registry file, save it as a. reg file of any name, and double-click it to close unnecessary sharing:

Windows Registry Editor Version 5.00

[HKEY_LOCAL_MACHINE \ SYSTEM \ CurrentControlSet \ Services \ LanmanServer \ Parameters]

"AutoShareServer" = DWORD: 00000000

"Autoscaling wks" = DWORD: 00000000

[HKEY_LOCAL_MACHINE \ SYSTEM \ CurrentControlSet \ Control \ LSA]

"Restrictanonymous" = DWORD: 00000001

18. Modify the service name and Explanation

The secondary primary key in the registry HKEY_LOCAL_MACHINE \ SYSTEM \ CurrentControlSet \ Services is each service. Select any secondary primary key and you can see the displayname and description strings on the right, displayname is the name displayed in "Administrative Tools> services", and description is the description of the corresponding service. The two can be modified at will, but the secondary primary key names and others cannot be changed.

19. Insufficient disk space cancellation warning prompt

Windows XP automatically monitors the remaining disk space. If the disk space is insufficient, it prompts you and suspends the System Restoration function. If you want to cancel the operation, open the Registry Editor, find HKEY_CURRENT_USER \ Software \ Microsoft \ Windows \ CurrentVersion \ Policies \ Explorer, and create a New DWORD Value nolowdiskspacechecks, and then modify it to 1.

20. automatically stop the Response Program

In the Windows XP operating system, we can modify the registry so that Windows XP automatically closes an application when it has stopped responding, so that no manual intervention is required. To implement this function, click "start"> "run" and enter Regedit to open the Registry Editor. The HKEY_CURRENT_USER \ Control Panel \ Desktop \ auto end tasks is displayed in sequence, change the key value to 1.

21. Put "my computer" and "My Documents" and "Qian Kun upside down"

The "my computer" charts of Windows operating systems of windows and earlier versions are all placed on "My documents", while windows and later operating systems are the opposite. In Windows XP, we can modify the Registry to place the "my computer" icon on "My Documents". The procedure is as follows: in the registry, locate hkey_classes_root \ CLSID \ {export d8fba-ad25-11d0-98a8-0800361b1103}, create a DWORD Value "sortorderindex", and change its key value to "54" (hexadecimal ). To put "My document" in the first place, you only need to modify the "sortorderindex" key value to 48 (hexadecimal.

22. The desktop settings remain unchanged at each startup.

We can modify the Registry to protect our desktop settings. No matter what changes are made, the desktop will be restored after the restart. The procedure is as follows: Open the Registry Editor, find the hkey_current_users \ Software \ Microsoft \ Windows \ CurrentVersion \ elasticsearch \ Explorer sub-key branch, and find nosavesettings under it, whose type is REG_SZ, change the key value to "0", or delete the key value and restart the system to make the setting take effect.

23. Prohibit ie from downloading files

File downloading is prohibited on some public computers. Although some management software can do this, installing and debugging such software is too troublesome. In fact, a slight modification to the registry can meet your requirements. Open the Registry Editor, find HKEY_CURRENT_USER \ Software \ Microsoft \ Windows \ CurrentVersion \ Internet Settings \ Zones \ 3, find the DWORD Value 1803 on the right, and change its key value to 3. Restart IE to see if the download is sufficient? To cancel the limit, you only need to restore the value of DWORD to 0.

24. Enable multi-thread download for IE

Generally, multiple threads are used to download files, such as flashget. In fact, ie supports multi-thread download, but Microsoft hides this function. We can use it after digging it out. Open the Registry Editor and create the "maxconnectionsperserver" double byte value under the Registry HKEY_CURRENT_USER \ Software \ Microsoft \ Windows \ CurrentVersion \ Internet Settings, which determines the maximum number of connections for Synchronous download, generally set to 5 ~ The number of eight connections is relatively good. In addition, for the HTTP 1.0 server, you can add a dual-byte value item "maxconnectionsper00000server", which is also used to set the maximum number of synchronous downloads, or set it to 5 ~ 8.

25. Enable Windows XP to log on automatically

Open HKEY_LOCAL_MACHINE \ SOFTWARE \ Microsoft \ Windows NT \ CurrentVersion \ Winlogon, create a new string "AutoAdminLogon" in the window on the right, and set their key value to "1 ", set the "DefaultUserName" value to the user name, create a new string value "defaultpassword", and set the value to the user password.

(Source: Hotspot Network)