To speed up the startup of Windows XP. You can modify the registry to achieve the purpose, in the registry editor, find HKEY_LOCAL_MACHINE/SYSTEM/CurrentControlSet/Control/Session Manager/Memory Management/PrefetchParameters, in the EnablePrefetchParameters, find the EnablePrefetcher key on the right, change its default value from 3 to 1, so that the scroll bar will take less time to scroll;
You can also
reduce the number of items that are loaded on startup
Start->Run-open
Type in msconfig and then find the "Startup" tab, and then find the "Unwanted Startups" tab in the list. In the list, find Startup that you don't want and remove the check mark in front of it. Except for the input method "ctfmon"
Type msconfig and find the "Startup" tab.