Avira Free Security

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Our award-winning antivirus secures you against online threats.

Protect your PC against online threats

With the industry’s leading detection rates, Avira Free Antivirus protects you from viruses, worms, Trojans, ransomware, spyware, adware, and rootkits.

Top protection, performance, and usability on Windows 10

Avira's free antivirus provides complete virus protection and a variety of security, privacy, and performance tools. We combine artificial intelligence (AI), cloud technology, and our real-time virus scanner to keep your personal data safe from all types of malware, including Trojans, ransomware, spyware, and adware. Avira's mission has always been to protect people in the connected world. However, it's a sad fact that nowadays threats are not just caused by viruses and malware — making protection far more complex. We've developed Avira Security as the successor to Avira Antivirus to provide you with a first-class user experience and all-round protection.

With a low system impact, near-perfect detection rates, and intuitive interface, Avira Free Antivirus delivers a smooth-running solution that doesn’t slow you down and always has your back.

Avira Free Security For Windows

Avira Free Security

Compare Defender with Avira

Security

Windows Defender offers essential protection against malware. Avira Free Antivirus delivers outstanding security with intelligent learning algorithms and award-winning detection technology. With Avira, you’re protected in real time against both known and unknown threats.

Migrate smoothly towards Windows 10

If you’re thinking of upgrading from Windows 7 or 8 to Windows 10, you can do so with Avira Free Antivirus, which is fully compatible with and optimized for all 3 operating systems.

Award-winning tech relied on by 500 million users and Fortune 500 companies.

Avira

Best protection

Best performance

Avira Free Security Suite Antivirus Software

WINDOWS 8

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Avira Free Security Review

WINDOWS 7

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