Please Help -Windows XP, My System is Dead?

Today morning when I am on my desktop, error comes on screen SYSTEM32/DRIVERS/PCI.SYS corrupt or missing and my system did not start. When I restall the Windows XP SP2 from copyrighted CD Setup is inspecting your computer hardware then blue screen comes of Windows Setup Then massage is File setupdd.sys... show more
Today morning when I am on my desktop, error comes on screen SYSTEM32/DRIVERS/PCI.SYS corrupt or missing and my system did not start.

When I restall the Windows XP SP2 from copyrighted CD
Setup is inspecting your computer hardware then blue screen comes of Windows Setup
Then massage is
File setupdd.sys Could not ne loaded
The Error code is 4
Setup can not continue, Press any key to exit.

I am change windows xp copywrited cdmassagessege is still comes
12 answers 12