Just purchased the top-of-the-line software package. Much more comprehensive than the 'free' download, which is now apparently much more limited than it was previously. So far I find this equal to, if not superior to Avast. A close friend had a few terrible viruses embedded in his 32. Exe files, and Avast identified them but could not remove them. Avast did remove them, and found a few other issues that Avast had not even identified. This product has a long history of very good reviews as well.