When my PC starts up the Windows logo ( the one with the blue screen with windows in the center) stays on for a minute are more.. My other PC start lot faster .. anyway I can get this problem corrected..Thanks..
I have XP home edition. 512RAM ..

   I don't know if I understand your question.  It sounds like you want to know why your Windows logo screen stays on longer on one computer than it does on another.
   There are many things that Windows does while that screen is on.  The one computer probably just has more to do.  It is not necessarily a problem.  The speed of your computer could also be a factor.