While antivirus programs aren’t an assurance of security online however, they can be useful. They look for malicious files online and on your computer to deter malware from infecting it and stealing your personal data. Typically, they scan archives, look through email databases for attachments, do a deep scan which checks CHM executables and files, skip scanning certain types of files (e.g., video files) and use heuristic scanning to block auto-runs on removable devices, password protect settings, and allow silent mode for gaming to block notifications.

Free antivirus software doesn’t provide features such as advanced web protections or identity security, which are offered in premium security suites. But, it’s crucial to know what you’ll need from your cybersecurity program before choosing a free program.

The majority of free antivirus programs that we tested are very good at detect malware and provide basic protection. However, some of the free programs come with a couple of extras such as a free VPN service (up to 100MB/day), a password manager, storage-optimizing features, and parental controls.

Contrary How to prevent virus to premium antivirus software, most free software collects information about your device as well as your online activities in order to lure users to purchase their paid plans. These include pop-up ads or messages encouraging you to purchase their products, as well as other methods. It’s not a reason to stop using an antivirus program for Windows. The programs we examined are easy to use, come with user-friendly dashboards and provide excellent customer support.