Blue Screen Viewer
Essential tool to deeply examine the dump files made by a BSOD event, otherwise everything suggested here is shooting in the dark. Tells you more than researching those long numbers on Google. I had a system in Manhattan, BSOD every day, ran viewer, spotted some leads and began to diagnose and ........... they went away. True, the last BSOD event was November 15 of last year. I still monitor but sometimes events are, rarely, self-healing. Go figure. Oh, and for some errors a good scotch and soda is a coping mechanism too.