How to optimize the WinXP system strategy

How can I make my WinXP system application safe to start faster and work more stable, then how can I do it? The following system home will give you a simple sharing, how to optimize WinXP system:
First, how to speed up the shutdown speed
Same as the startup, Windows XP shutdown speed is also the same slow, to speed up the shutdown speed, first we First, you need to open WinXP's auto-end task function (AutoEndTasks) through the registry. The specific steps are as follows: Locate HKEY_CURRENT_USERControl PanelDesktop and set the AutoEndTasks key to 1.
Then modify “HungAppTimeout” is "4000 (or smaller)" (default is 50000), the key value is also in the HKEY_CURRENT_USERControl PanelDesktop directory; the last step is to find HKEY_LOCAL_MACHINESystemCurrentControlSetControl, also set WaitToKillServiceTimeout to “ 4000”; The shutdown speed after this setting is obviously faster,
Second, completely close the Windows XP file protection function
Find HKEY_LOCAL_MACHINESOFTWAREMicrosoftWindows NTCurrentVersionWinlogon from the registry, modify the "SFCDisable" key value is "ld"; FFFFFF9D”, if you need to re-enable this feature, reset it to “0”
Third, start the hard disk /CD-ROM DMA mode
Open System Properties -> Hardware -> Device Manager -> IDE ATA /ATAPI controllers, select "Primary IDE Channel" Or “Secondary IDE Channel”, check if the DMA mode is enabled. Generally, if the device supports it, the system will automatically turn on the DMA function; in addition, the transfer mode currently used by the drive can also be seen here.
Fourth, disable Dr. Watson debugger
enter "ldwtsn32" in the run, and then remove all thread contexts except "Dump All Thread Contexts", otherwise there will be The program is wrong, the hard disk will be loud for a long time, and it will take up a lot of hard disk space.
5. Shorten the startup time
Recommended to use the Bootvis software released by Microsoft, which can automatically optimize the system to shorten the time used for startup. Select “Optimize System” in the "Trace" You can also reduce the startup time by reducing the startup time when you start the program loaded by Windows XP's built-in MsConfig setup program. Just enter the startup “msconfig” and then set the relevant settings through “Startup”
1, Bootvis
2, msconfig
Six, set the processor level 2 cache capacity
Windows XP can not automatically detect the processor's secondary cache capacity, we need to manually set it in the registry, First open the registry (in the run, enter "Regedit"), then open:
HKEY_LOCAL_MACHINESYSTEMCurrentControlSetControlSession ManagerMemory Management
select "SecondLevelDataCache", according to the processor settings you use, such as PIII Coppermine/P4 Willamette is &ldquo ;256”, Athlon XP is "384", and P4 Northwood is "512".