How do I remove a browser hijacker/trojan?

Ok, so my computer somehow got a trojan virus and I've been using every program imaginable to get rid of it, but I think it might be changing its name and reinstalling everytime I boot up. I'm pretty sure it has embedded itself into system 32 because every now and then my computer goes the to blue error screen that says "physical memory dump complete" or something like that. The thing that's pissing me off the most is that when I google something and click on the link, it redirects me to some bull**** website that's full of ads and junk. Please help, I have already tried avast, superantispyware, malware bytes, spybot S&D, trendmicro housecall, adaware SE, and one other one I forget.