Use the Cnet download. I just started using it in Jan. on the advice of Eset - and although it does have a pay section for the active scan - mine was free. Of course they might have changed.
I can say this though - so far it's done an excellent job at finding crap that no others could - and I may just pay for the full version in the near future.
And if those don't work - I have some others with detailed instructions that I got from Eset. They were working hard to keep me happy -
Ron