In tthe last 10 years or so I originally used AVG Free, but as they became more obnoxious with more nagware, I moved to Avira Free and now it is pretty bad too. Are there any free antivirus packages that offer good protection, and aren't obnoxious about it? What are you guys using? I've seen some recommendations for Kaspersky, but I don't trust them at all after the news of the link to Russian intelligence. Some seem to like Bitsefender as well. Any ideas?