system
11
i have the same problem avast tells me i have it just as you have said tried everything as you have the only thing i have found is a file called d3do.dll a superhiden file that i can not get rid of. it is in the system32 folder and security task manager finds it. seached every place done most things but cannot delete it only thing i have not done is try recovery to delete it.
I will give this another week then i think it will be a format >:(