To do so do the following:
1.Start Registry Editor (Regedit.exe).
2.Locate the following key in the registry:
Code: Select all
HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\SessionManager\MemoryManagement\PrefetchParameters
3. On the EnablePrefetcher value, change the setting from 3 to 5 (decimal).
4. Close the registry editor.
5. Restart your computer.
Warning: Whatever you do DO NOT install a tool called BOOTVIS from Microsoft, unless you're absolutely sure of what you're doing and have good knowledge of the tool and it's use.
Source: http://www.petri.co.il/make_windows_xp_boot_faster.htm