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Registry hack to make WinXP boot faster

H

human2k

Diamond Member
Warning - changing Registry setting is dangerous and might crash your system. Use the following suggestions on your own risk.

start "Regedit" (if u dont know how then u should'nt be doing this).

Follow this string :-
HKEY_LOCAL_MACHINE -> SYSTEM -> CurrentControlSet -> Control -> SessionManager

-> MemoryManagement -> PrefetchParameters.

Then look at the EnablePrefetcher string and change the value from 3 to 5. it doesn't matter if you keep it Hexadecimal or Decimal.

Close registry and restart WindowsXP; it should load up between 5-15 seconds (or even

more) faster. If u get success spread the word and help others.


**worked for me, IF you don't know what regedit is, DON'T BOTHER!**


For the lazy, in zipped form, includes undo also.
 
no offense, but registry hacks posted in off-topic kind of make me fear for my system integrity
 
nice tip...I just went in and deleted everything in my registry....less stuff to take up space right????
 
from

By default, the logical prefetching of disk I/Os is only used on .NET Server OSs during the boot process. It can also be activated for prefetching pages that are read in during application startup, but you will need to modify the registry for that. The registry key that needs to be modified is HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\Session Manager\Memory Management\PrefetchParameters and the value name is EnablePrefetcher. A value of 0x00000001 indicates application-launch prefetching, a value of 0x00000002 indicates boot prefetching, and a value of 0x00000003 indicates both application and boot prefetching. The file with the prefetch instructions goes into the %SYSTEMROOT%\Prefetch directory, but since it's a binary file, it is not readily readable.

Although, this would lead one to believe that 0x00000003 would be the max value?
 
worked here too. Had 1.5 bars instead of the normal 7-9. I set it back though since I dont really know what it's changing and I dont really mind the extra few seconds wait anyways. nice tip though
 
Is anything else faster? App loading? Copying?

Wonder if it just disables checking for things like certain types of h/w?
 
WOW thanks I turned on my computer and I never saw a boot screen 🙂
So i tried it again the boot screen came up but kinda just flashed on and then off

 
mine went down from 5 to 1.5 bars, but i changed it back. not worth having one other possible screw up point. but thanks anyway! 😀
 
Originally posted by: vtqanh
worked for me, too. But anyone has any idea what it did?
Click to expand...

Tweakhound doesn't know either. Has anyone noticed other things faster or different? Opening Explorer to view a harddrive? Opening apps? Browsing?
 
File prefetching is probably loading other files into memory while the other files are being worked with.

Like fetching the next piece of homework while you're doing your current one.
 
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