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these are the things that Windows do (will do) after the computer boot past the BIOS POST and at the boot up screen where you see the progress bar..
1) Loads device drivers marked to load at boot time (drivers for the specific machine)
2) Prefetching
3) Reads the registry and initialize the page file
4) Sets the display mode for the final resolution and refresh rate
stages of the progress bar screen are done.
the Prefetching time is the longest time where Windows spends (on most system),
when you remove all of the files in Prefetch folder you 'will' see the progress bar goes real fast,
atleast it's what it seems to be.. this can be tested on any Windows XP system..
let i say/use on most system.
try removing all of the files in Prefetch folder and reboot your PC,
you 'will' see that the progress bar boot screen goes faster than before..
the progress bar used to be 4-6 times before, now you will see 1-2 times.
BUT, the overall (the whole amount) boot time-- starting from clicking the Restart in Windows or pressing the power switch to a useable state again will be 'increased'.
as for the simple reason for this..
let see what the Prefetching do...
"Prefetching time is the time spent reading pages in from disk used later as devices initialize, and Winlogon, services, the shell, and other applications start during boot."
no Prefetching system on the XP,
causing the slowdown on the next stage of the Windows boot-up which is when the Windows starts Winlogon, services, the shell, and so on... untill you see the desktop and your XP is at a useable state.
Prefetching is the new XP 'Memory Management'..
HKLM\SYSTEM\CurrentControlSet\Control\Session Manager\Memory Management\..
Not only the boot time or program launch time.. it can add or cut down the overall syetem performance.
If you think the XP's Prefetching does not help anything-- why not turn it off.
you can do this via a simple registry hacks-- you can even turn off the Task Scheduler service completely, if you decide not to use the XP's Prefetching system.
let's the XP do it things (including registry and prefetching)...
you can push it and expected to see an improvement within a short period of time if you know how to do it,
otherwz you won't see any improve within a day or two.
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Last edited by Ctrl-Alt-Del; Jan 26, 2005 at 05:09 AM.
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