How to optimize the Windows XP 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

at [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.