Im having trouble with windows startup. something's wrong...

yesterday it was asking to boot because an update was installed. so i boot, and then the problem started: when the desktop was about finish loading, something failed and flashed a bsod, then booted again, and again. my solution was to boot windows with the last known settings that worked; i cant find the problem, i also changed the problem boot settings, to be able to read what the bsod said. It says the usual, and the problem is:
STOP: 0×0000008E (0×00000005, 0xBAA688D3,0xBACEB968,0×00000000)

00000EF6 – adress BAA688D3 BASE AT BAA68000, DATESTAMP 49c97a84

i dont know how to interprete those memory adresses, how can i associate them with some program or file? sure is a probem with the startup.. cant figure it out by myself.
btw, i have winXP pro sp3