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
Enjoy a multi-award-winner
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. Our antivirus scanner also 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.
AND RECOMMENDED BY THE INDUSTRY
"Avira plugs the holes Windows Defender often leaves open"
The latest technologies
Detects and blocks malware (viruses, ransomware, banker trojans, etc.)
Our automated, intelligent learning system protects you against new and evolving threats.
Identifies potentially unwanted applications hidden within legitimate software.
Blocks harmful websites before they load.
Prevents intrusive and malicious ads, banners, and pop-ups from loading.
Browser Tracking Blocker*
Stops companies from monitoring you online.
Saves you money while you shop.
There’s safety in numbers
Operating systemsMicrosoft Windows 7 Service Pack 1 or higher with the newest updates, hotfixes, and service packs installed
RAM2 GB of RAM or more
Disk spaceMinimum 2 GB of free disk space (additional space for temporary and quarantine files needed)
CPU typeIntel Pentium 4 / AMD Athlon 64 Processor or faster (with support for the SSE2 instructions set)
BrowserInternet Explorer 8 or newer
Additional requirementsTo 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