Free Antivirus Software You Can: Protect Yourself With

Deeply integrated into the OS, low system impact, and no annoying pop-ups to "upgrade."

People who want maximum protection without a cluttered interface. 3. The Customizer’s Choice: Avast Free Antivirus

Bitdefender is consistently ranked at the top of independent lab tests for malware detection. Free Antivirus Software You Can Protect Yourself With

You will see occasional prompts to buy the "Pro" version.

Excellent at catching "zero-day" (brand new) threats and fileless malware. Deeply integrated into the OS, low system impact,

Incredibly lightweight and minimalist. It runs quietly in the background and only alerts you when it actually finds something.

Kaspersky is widely regarded as having some of the most sophisticated detection technology in the industry. Deeply integrated into the OS

Includes extras like a password manager and web shields that block malicious URLs.