Avira Free Antivirus for Windows
Award-winning protection, and free forever
- Top antivirus: blocks spyware, adware, ransomware, etc.
- Real-time protection & updates
- Light and fast: doesn’t slow down your PC
Editors' rating:
Spectacular
GET FREE ANTIVIRUS ON ALL YOUR DEVICES
Enjoy a multi-award-winner
We have received top awards for our protection, performance, and repair capabilities.
Real-time protection & repair
We protect you from billions of malware attacks annually, including against ransomware, Trojans, worms, viruses, and more. In addition to virus scans, our antivirus software includes advanced repair functionalities, fixing over 90 million files last year.
Real-time updates via the cloud
Stronger together: every secured device is as a sensor, which detects emerging, never-seen-before attacks. As soon as a new threat is identified, all our customers are immediately immunized against it, protecting millions within minutes.
Light and fast
Avira has one of the smallest footprints in the industry – with virus definition updates 2-5 lighter than most other antivirus products. Unlike many others, our protection doesn’t slow you down nor hog your system’s resources.
The best antivirus protection
With over 30 years of security experience, Avira offers superior detection, with additional web protection and repair capabilities. And as a German company, we don’t track what you do or sell your data to third parties.
Made in Germany.
Downloaded by millions.
4.5/5 - Excellent
19,000+ reviews
AND RECOMMENDED BY THE INDUSTRY
There’s safety in numbers
internet-attached devices make up our world-wide sensor network
attacks a day are blocked on average
phishing attacks were stopped in the last 12 months alone
ransomware attempts were thwarted in the last year
What’s inside?
The latest technologies
Laptop, smartphone or tablet?
Secure all your devices with Avira
LOOKING FOR PREMIUM ANTIVIRUS?
Discover Antivirus Profor Mac and Windows
System Requirements
Operating systems
Microsoft Windows 7 Service Pack 1 or above with the newest updates, hotfixes, and service packs installed
RAM
2 GB of RAM or more
Disk Space
Minimum 2 GB of free disk space (additional space for temporary and quarantine files needed)CPU type
Intel Pentium 4 / AMD Athlon 64 Processor or faster (with support for the SSE2 instructions set)Browser:
Internet Explorer 11 or newerAdditional requirements
To install, you’ll need administrator rights, an internet connection, and a web browser. For automatic antivirus updates and optimal malware detection, you’ll need an internet connection
What’s inside Avira Free Antivirus?
All the essentials to ensure your security, privacy, and performance.
All the security essentials
Whatever you use and whatever you do, keep it secure
Avira Free Antivirus protects your personal data, your software, your browsing, your searches, and even your home network.
All the privacy essentials
Be anonymous in everything you do
Avira Free Antivirus helps you browse anonymously, encrypts your web traffic, prevents companies from collecting your private data, and keeps your passwords secure and for your eyes only.
Get peak performance
Your PC running as it should
You deserve the best digital experience. Get greater speed and more memory from all your devices. All with just one click.
The best free antivirus for Windows, plus the fastest and safest browser
The Opera browser is integrated into Avira Free Antivirus.
Avira's browser applications are optimized for Opera. We recommend using Opera as your default browser for the best browsing experience.*
*If you do not wish to make Opera as your default browser, you can easily change the configuration or even uninstall it. Find out more.
Why Opera?
Opera is a fast, lightweight browser with unique features:
- Integrated ad blocker
- Customizable speed dials
- Search for open tabs
- Battery saver
- Integrated messengers