If you're looking for malware protection and antivirus software with the best security features, here's the first thing you need to know: Microsoft Defender Antivirus - the free antivirus software and virus protection program that comes with Windows 10 - is a decent antivirus tool for protecting your PC and offering internet security. And also offers a secure browser experience in the process. The best antivirus software is a program that includes features like malware protection, monitors downloads and observes your system's activity for malicious software and suspicious behavior. We regularly research and test our options to determine which software leads the pack, because not all antivirus software programs are created equal. Antivirus software is an essential tool in your identity protection toolbox and there's just too much personal information on your computer these days to risk even a day without online threat protection. This is why anyone with a Windows PC should install antivirus software on their machine the moment it's out of the box and should update that software regularly to stay ahead of emerging and evolving cyber risks. Even if you surf the web on a secure browser and use threat-detection software, it can be all too easy for an insidious program to wind up on your machine, and that can lead to chaos such as identity theft.