Fernando1. Found my way in here through some extensive searching for a solution to be allowed to "degrade" from Vista to XP on my daughters new Compaq CQ70-135EO. Your excellent guide helped med through the process and right now it's installing. Thanks a lot for doing this guide, for a guy like me, it's worth gold! I actually registered in here only to be able to thank you, but having browsed through some other topics, I think I'll stay active :-) And an edit some hours later Windows XP installs fine, but when rebooting at the end of install, a BSOD flashes by so fast I can't even read what it says and then the laptop goes into "safe mode" boot options. Regardless of what I choose, same thing happens again over and over......... I honestly don't know what to look for now, hoping someone out there can help me further. Otherwise it's back to find those backup-DVD's I fortunately made when the laptop was new some weeks ago. Thanks in advance