Before my keyboard died on me last night, I was going to say the linked MS article does suggest strongly that the blue screen is related to spyware. The other possibilities, given that you have reinstalled Windows and seem to have taken the same bullet twice, would be a bad device driver and possibly a bad bank of ram.
If you don't get anywhere with the first route, there are other troubleshooting paths you can take - maybe save that up for another day depending on how you get on with the first attempt to fix things.
