Important: Your current Windows version is outdated and no longer supported.
For your security, we recommend switching to Windows 10 before downloading Avira software.
Update your Windows version here.
Wichtig: Ihre Windows-Version ist veraltet und wird nicht mehr unterstützt.
Zu Ihrer Sicherheit empfehlen wir Ihnen den Wechsel zu Windows 10 vor dem Download unserer Software.
Hier können Sie Ihr Windows aktualisieren.

Download Avira Free Antivirus

Award-winning protection for Windows, Mac, Android, and iOS.

"Avira plugs the holes Windows Defender often leaves open"
Scroll for more

Enjoy a multi-award-winner

We have received top awards for our protection, performance, and repair capabilities.

Top product award for our protection, performance, and usability
Top award that mimicks real-life situations
#1 antivirus detection technology
Top award for our anti-ransomware protection technology
Top-rated performance test - doesn't slow you down

Free or Pro?

Your lifestyle. Your choice.

Avira Free Antivirus Boxshot

Avira Free Antivirus

Protects you from malware
Download for free
Avira Antivirus Pro Boxshot

Avira Antivirus Pro

- Protects you from malware
- Secures your shopping
- Blocks phishing attacks
- No ads & more
$44.99 / Year
Buy Now
Antivirus software products comparison graph

The best antivirus

But don’t take our word for it — see our latest results from AV-Test

Graph about antivirus engine sizes in MB

Best performance

We offer ultra-light virus definition updates – with a footprint so small it doesn’t slow you down and hog your system’s resources.

Avira Headquarters, Tettnang, Germany

Security made in Germany

Avira is a member of IT Security Made in Germany—synonymous with quality and respect for your privacy. We don’t monitor what you do
nor share your private info with 3rd parties.

Avira Protection Cloud AI Technology Graph

Our technology

To stay ahead, our multi-layered security harnesses the power of cloud technology, machine learning, and artificial intelligence. And as all the analysis happens on our end, you get top protection with minimal system impact.

We protect you from all online threats — for free









Private by design: We don't sell your data.

Unlike most security vendors, Avira doesn't sell your data and never will. Nor do we share your data with 3rd parties such as government, Big Tech or advertising networks.

Made in Germany.
Downloaded by millions.

4.5/5 - Excellent

19,000+ reviews

And recommended by the industry

rated 4,5/5 on GOOGLE PLAY

520,600+ reviews

rated 4,1/5 in AppStore

300+ reviews

CNET Editor’s rating

Laptop, smartphone or tablet?

Secure all your devices with Avira


Discover Antivirus Profor Mac and Windows

Learn more about the following

What is adware?

Adware shows annoying or infected advertisements on your device without your permission and you get spammed with banners and pop-ups…

Learn more

What is malware and why is our Malware Scanner important?

Visiting websites and downloading files makes your computer or mobile device vulnerable to threats and attacks…

Learn more

What is ransomware and why do I need ransomware protection?

Ransomware is malicious software that encrypts the hard disk of the infected system…

Learn more

What is phishing and why can it lead to ID theft?

Is that email from your bank? This technique uses deceptive emails and websites to gather personal information…

Learn more

What is spyware and why is it “watching”?

Spyware is a software that secretly monitors you and collects data about you, your device, and your online activities…

Learn more

Download award-winning antivirus for free