What is the first file used in the boot-up of windows 2000XP?
To find that answer you would need to enable boot logging in the
bios of the system you are operating with. To do this process a
step by step can be found at:
http://www.watchingthenet.com/how-to-enable-boot-logging-for-fixing-startup-problems-in-windows.html
Typically the issues lay with the file AFTER the one that was
previously loaded in the log as the system has already loaded the
file in the log and crashes loading the one following.