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Get the world’s #1 antivirus for free.

Avast Free Antivirus protects your computer against viruses and malware, and it helps you protect your home network against intruders.

Top Rated product, 2020

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 and movie buffs.

You

But I’m backing up my files to the cloud.

Avast

That’s a good habit. But the problem is that the ransomware-encrypted version of your files gets immediately synced with the cloud too...so unless your backup solution stores historical versions of your files, you’re in trouble.

Avoid becoming the victim of digital extortion

Ransomware is quickly becoming one of the most common — and dangerous — types of malware out there. Avast Free Antivirus protects your devices against havoc-wreaking ransomware so you don’t become the victim of digital extortion.

Game or movie time. Now uninterrupted
NEW

Game or movie time. Now uninterrupted

Game or movie time. Now uninterrupted
We’ve renamed Game Mode and taught it some new tricks. Now called Do Not Disturb Mode, it blocks distracting popups whether you’re gaming, watching movies, or presenting in fullscreen.
Introducing Behavior Shield

Introducing Behavior Shield

Introducing 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.
Avast Free Antivirus

Fast, light and powerful free protection.
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