I am posting this for my friend so I will try to be as specific as possible. He has an IBM Thinkcentre pc and out of the blue Windows Live froze so he reboot. When he rebooted he got the BSOD. He tried every option: safemode, last known config, etc. and they all take him to the BSOD. He changed the boot order to boot from CD/DVD and then he tried a Dell WinXP Disk and a burned WinXP disk and all that happens is they boots straight to safe mode/last known good configuration screen again. It will not boot straight to disk.
He is reinstalling Vista on his laptop so he can access the web and take over from me here to get advice but if you have any ideas in the meantime I would appreciate it.