Light yet powerful antivirus for Windows
Real-time cloud scanning
Learn more about our Free Antivirus for Windows by checking our feature set and system requirements.
Explore our other free solutions
Award-winning protection from malware (viruses, Trojans, worms, etc.)
Browser Tracking Blocker*
Quietly prevents companies from monitoring what you do online.
Protection Cloud Technology
Scans unknown files in real time for malware and exploits.
Blocks harmful websites before they load.
Identifies potentially unwanted applications hidden within legitimate software.
Saves you money while shopping online.
*These features are included with Avira Browser Safety – a browser extension for Chrome, Firefox, Opera and Internet Explorer.
AMD: starting with Athlon 64/Sempron (Paris core)/Opteron
Centaur Technology: starting with VIA C7
Intel: starting with Pentium 4 (desktop) or Pentium M (laptop)
Transmeta: starting with Efficeon
Min. 1024 MB RAM
800 MB available disk space (additional temporary and quarantine space needed)
Internet Explorer 8 or later
Administrator rights, an Internet connection and a web browser are required during installation.
For the automatic update to work an unrestricted Internet connection is required.