Write the next sentence in this paragraph:

How to reinstall windows xp without formatting your hard drive
Get an xp cd, preferably the one you wish to reinstall.
Reboot and configure your computer to boot from the cd, then enter windows setup.
When all the drivers (including any you might need to specify yourself) have loaded, you should be at the main windows setup screen.
Note that if you are using a trial copy cd, there will be a screen explaining that the copy is a trial, before the main setup screen. Press " r " to start the windows recovery console.