I downloaded Nero 7 from The Pirate Bay and got a bad virus which took my computer completely down for a month. I eventualy had to reinstall Windows and all my applications. Like AaronWalkhouse said in previous - Virus check everything downloaded ( especially . zip files ) before you open it. Once you extract it, you allow it to get into your system unchecked. The one I had could not be found or removed with any of the half dozen programs I tried. It changed characters all over the registry and the environmental variables. It also disabled much of the windows environment, corrupted antivirus & firewall programs and diabled internet access.