Contact the seller and or look at the documentation that came with the
laptop. Venders are required to give you a way to reinstall Windows or do a
factory restore. The vendor might provide you with recovery discs or the
laptop manufacturer might provide you with such if you contact them. Many
computer do not come with actual Windows install CD's anymore rather you are
given an option to create a restore CD set yourself. This option might be
available through the Control Panel. Some venders simply provide a recovery
partition that is accessed by pressing a key combo during computer start up.
It could be F11. If you have no other option you might be able to use the
Product Key that is on a sticker on the bottom of the laptop with another
OEM version of XP Home Edition. If a friend has an OEM version of XP Home
you could try using it with your Product Key. To see if that works boot the
computer to the Desktop, insert the OEM XP Home CD. Select the option to
install. Enter your product key (not your friend's key) and click OK. If
your key is not accepted you will be told that it is invalid. If your
Product Key is accepted you can cancel the process with no harm done and
then boot the computer with the CD and do the fresh install. The final
solution is to go out a buy a copy of XP Home.