Yes Tom,
I definitely had removed the connexent driver and had the "h.d.a.d." and blocking in place. I didn't wait for days though as I was getting pretty frustrated by this point in time!
I'm not sure if there is another problem causing the rollbacks, but have never had a BSOD when I try to manually update.
I dont know enough about Windows to ascertain that. All I know is that I'm not being offered the update and can't find a way around the block.
I have tried using the both the media creation tool and also the update assistant, both with the same results.