In the following tutorial, I outline the process of installing Windows XP on an HP dv9500 series Laptop. Most Hewlett Packard (HP) Laptops are currently being shipped with Windows Vista, and there is minimal driver support on the HP website site for those who wish to downgrade to Windows XP. Hence the necessity for this tutorial. We will be using nLite to create a remastered Windows XP installation disk with integrated SATA drivers, so having a working CD Recorder is essential. I would also recommend having a USB flash drive handy to hold additional drivers that will be used after installation. I've personally tested this process by downgrading an HP dv9548us notebook to Windows XP and had great success. Should work on downgrades to Windows XP on other dv9500 and dv2500 series HP laptops as well.