Cloud-light, award-winning free protection
Packed with the largest threat-detection network, machine-learning protection, easy password management and home network security that won’t slow down your PC.
Avast is recognized by the most important anti-malware institute.
5 Advanced+ awards and the lowest impact on PC Performance
Certified for 100% protection against 0-day threats.
Easy to install, effortless to use
Avast Free Antivirus scans for security and performance issues and tells you how to fix things instantly.
It protects you in real-time by analyzing unknown files before they get to you. So relax: With Avast, you’re running the most trusted antivirus out there.
What’s inside the latest version?
A beautifully intuitive interface, advanced application protection, a new passive mode for running multiple security products in parallel — and a little something for you gamers out there.
NEW Designed for effortless security
Just a click of our fresh, new, easy-to-use interface checks everything from your passwords to your home network security.
Our new automatic Game Mode puts all Windows and Avast notifications on hold so you’ve got maximum processing power and speed for your game.
NEWIntroducing Behavior Shield
We don’t just check your applications for malware. We now keep an eye on their behavior to make sure they don’t suddenly go rogue.
This is no run-of-the-mill free antivirus
On top of our latest features, we cover essential intelligent threat-detection and real-time protection with such a light touch on your PC, you never even know it’s there.
Detect and block viruses, malware, spyware, ransomware and phishing. We use smart analytics to stop threats before they affect you.
Automatically send suspicious files for analysis in the cloud, and push a cure to all Avast users if it’s a threat.
Automatically detect weaknesses in your home Wi-Fi and strangers piggybacking on your network.
Find all those cracks which allow malware to slip in, from unsafe settings and passwords to suspicious add-ons and out-of-date software.
This is protection that goes above and beyond
Security doesn’t end on your PC. No other free antivirus crams in these extras to be sure you’re covered everywhere.
Too many passwords, none of which are safe? It’s fairly common. Remember just one, and Avast Passwords will take care of the rest, across all your devices, for free!