I´ve bought a laptop HP Pavilion dv5000, which it comes with Windows XP Home as O/S. I need to install Windows XP Professional and would like to format the hard disk, because I don´t trust in Windows upgrades, I prefer to instal from scratch . But I´m worry if I do that and try to instal W XP Professional, then the O/S will need some HP drivers to recognise some devices, such as the DVD RW or something else. The laptop came without any HP CD of drivers. What do you suggest to do? Just format the hard disk, instal Windows XP Professional and then see what happen or how to know what drivers of HP I will need?