How can I restore my computer operating system without reinstalling windows xp from scratch?

My Fujitsu Seimans Scaleo P started running slow a few weeks ago. I'm running Norton Internet security.

How can I restore my computer operating system without reinstalling windows xp from scratch?house call

Try this,

Windows XP Repair Installation

At some point you may need to repair the installation of Windows

XP. This is preferable to a clean install in many cases since it

attempts to only repair your copy of windows without having to

delete all the files on your computer first. In many cases a

repair installation is enough to fix the problem. A repair install

deletes the files normally installed by windows XP and then

reinstalls them off the disc. A repair install will not rebuild

your computer's registry, delete applications and user settings,

or fix problems caused being caused by a program.

1. First you have to boot the computer with the Windows XP cd in

the cd tray. You will see a black screen and it will ask you

to press any key to boot from the cd so press the spacebar

and your computer will boot from the CD.

2. After a moment you will be taken to the Windows XP Setup

screen. Though the second option says to repair do not press

R. Instead press enter to select the setup for Windows XP.