Version 1 works fine on any of my HDDs. Version 2 has been attempted on two separate partitions of one HDD, and a second separate HDD. Also, I am not having any symptoms of a failed or failing HDD. As for file infections, are you implying that the downloaded version 2, as well as the emailed copy of nod32krn.exe is infected? Or are you implying my machine. I would think both to be out of the question, as I seriously doubt a company providing AV software would distribute infected files. As for my machine, I just did a complete scan with Version 1.491 and there are no infections. Any other suggestions?