Why is my xp scroll bar scroll for a long time!

Users questions: My xp boot screen scroll bar under the boot to be rolling every 17 laps, this is why? Computer configuration: Celeron D3.06ghz processor, Atiradeon550x cards, 160g hard drive. Please help me solve this problem, most grateful!
Experts answer: solution, such as Next: 1, Start - Run - enter regedit ENTER to open the Registry Editor, locate the HKEY_LOCAL_MACHINE * SYSTEM * CurrentControlSet * Control * SessionManager * MemoryManagement * PrefetchParameters, the right to find EnablePrefetcher primary key to its default value of 3 to 1, this time rolling the scroll bar would be reduced. 2, in the "My Computer" right click - Properties - Hardware - Device Manager - click on "IDEATA * ATAPI" Options - Double-click "Secondary IDE Channel" - Advanced settings - device type, the "auto detect" to "no", mainly to have done the same IDE channel settings, so you scroll up the computer to run three times, starting speed Degree will increase three times more.
  • This information provided by the users.Thanks!