In order to view this page correctly, you must have a JavaScript-enabled browser and have JavaScript turned on. We apologize for any inconvenience. Learn how to enable it.

We support browsers, not dinosaurs. Please update your browser if you want to see the content of this webpage correctly.

Avast Free Antivirus

Lighter, more powerful – and absolutely free

FREE DOWNLOAD

Also available for Mac, Android and iOS

Avast Free Antivirus

FREE DOWNLOAD

Cloud-light, award-winning free virus protection

Packed with the largest threat-detection network, machine-learning virus protection and home network security that won’t slow down your PC.

Avast is recognized by the most important anti-malware institute.

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 and movie buffs.

You

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

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.

TECH CORNER

Like the name suggests, ransomware is the digital equivalent of a hostage situation. use ransomware to encrypt the personal files on your computer or phone, preventing you from accessing them until you — you guessed it — pay a ransom. Avast Free Antivirus blocks ransomware before it can get anywhere near your files — let alone encrypt them. And don’t worry about accessing and using all of your files (documents, photos, etc.) as you normally would; ransomware protection works quietly in the background.

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

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.