I'm the same, knowing enough to get in trouble, hehe. I'm what the ham radio guys would call an "appliance operator", but I hope I pick up enough here and there to be one step ahead of the hackers.
The 3rd HP disc is for recovering individual programs or drivers for their machine, such as EasyCD or the Arcsoft image program or modem drivers, etc. They were even kind enough to give you the chance to recover BackWeb, which some considers snoopware.
Get their model number and hopefully some idea of what causes the BSOD and perhaps we can venture some guesses as to the problems. At least we can look it up on HP's site. It'll give us the specs and what even shipped in the carton.
We'll see. They may have already made up their minds to get a newer model.