I'm surprised no one has mentioned ironshield antivirus. It's what I've used for a few years and have had no infections or issues. It's free and very lightweight compared to other antivirus programs - especially those that I had paid for and pass.Although other solutions might be more robust and feature-rich, I prefer to use it at <ironshieldeav> a simpler approach which is a combination of this software, the Windows Firewall, and a proper mindset when it comes to browsing the Internet and using e-mail and automatically update. so it is very useable software of world.

ClamWin works fine with just about any other antivirus program. It is an on-demand scanner, which only scans when you tell it to--either via a manual scan or a scheduled scan. You can get the Clam Sentinel program, which is another project that lets you use ClamWin as a resident scanner that scans files when they are put on your computer. Clam Sentinel also has its own heuristic scanner that can detect viruses for which ClamWin does not have a signature. Clam Sentinel is also easy-to-use--with all functions accessable via a menu pulled up from its system tray icon.

With malware that is changed frequently to avoid detection, targeted malware that does not get distributed widely, and malware downloads/injections/exploits via the web, a second scanner is probably a good idea, but you have to make sure it does not conflict with your main scanner. I find it best to exclude the data folders and quarantine folders of each antivirus from the other antivirus to avoid conflicts. Even then, both scanners will sometimes kick in simultaneously to look at a file now, but that should be just temporary. Use Task Manager to make sure there is not a permanent conflict.

Regards,