XP Windows Logo Testing error

[dieselstation]

Is there a site or webpage that explains the "windows xp logo testing" error you get when you install non-certified drivers? I know what it all means and everything, but unfortunately, i support a bunch of newbies who are afraid to continue with the installation. I need a site that explains what this error actually means and that it doesn't necessarily mess up your system. preferably something from microsoft's site itself. I've tried searching and nothing comes up.