Hey, this forum seems to have a lot of info on this topic, but no actual stickies explaining things for those of us who are clueless. Basically my problem is I need to format an old HP desktop that shipped with XP Home, and I don't have access to the original system discs. Of course HP wants to charge like $20 for a replacement (and more for the tech support call if you're not careful) so I figure if it's possible to circumvent this using a non-HP XP Home disk, I'm all for it. So after browsing around this forum, I was able to use a program called OEMBIOS.exe on the computer in question to see some CRC numbers or something, and then I went and downloaded some OEMBIOS files from one of the sticky topics here that matched the "hp & compaq" entry (in the oembios.exe output). Apparently these should go in the "i386" directory of my new image. So far so good. However, from reading around it isn't totally clear but I suspect there is more to it than this (also, all the instructions are for XP Pro, which isn't an option here), so can anyone tell me what I need to do? Also, I have the following XP Home SP3 discs available to modify: Retail XP Home SP3 Dell XP Home SP3 OEM Which would be the better starting point? Thanks for any info.