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Need to protect your PC with Windows?

Avast is the most-trusted antivirus brand globally. We protect over 435 million PCs, Macs, and Android devices - more than any other brand. Download your Avast today.

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Three levels of protection

Avast Free Antivirus Avast Pro Antivirus Avast Internet Security Avast Premier
Free Antivirus Essential
Pro Antivirus Expert
Internet Security Advanced
Premier Complete
Download Download Download Download
Block viruses and other malware Detect viruses, ransomware, and other threats in real-time. yes yes yes yes yes
Scan for Wi-Fi security weaknesses Expose intruders and security weaknesses in your network. yes yes yes yes yes
Secure your passwords Lock your passwords in our vault and log in to sites with 1 click. yes yes yes yes yes
Avoid fake sites for safer shopping Stop criminals from stealing your passwords and banking info.   yes yes yes yes
Safely run suspicious apps Sandbox any app to avoid affecting the rest of your PC.   yes yes yes yes
Block hackers with advanced firewall Stop hackers from sneaking onto your PC to steal your data.     yes yes yes
Block annoying spam and phishing emails* Stop annoying junk mail for a safer, cleaner inbox.     yes yes yes
NEWGet an extra layer of ransomware security Keep personal photos and files safe from unwanted changes.     yes yes yes
NEWStop webcam spying Prevent peeping Toms from watching you via your webcam.       yes yes
Permanently shred sensitive files Securely delete files to ensure that no one recovers them.       yes yes
Automatically update apps Reduce security risks by keeping your other apps up-to-date.       yes yes
Includes Avast Cleanup Premium Remove hidden junk, free up disk space, and speed up your computer.         yes
Includes Avast SecureLine VPN Encrypt your Internet connection for safer, anonymous browsing.         yes
Includes Avast Passwords Premium Be warned of leaked passwords and log in to websites with a click.         yes
  Download Download Download Download

The most popular antivirus family!

Millions and millions of desktop and mobile devices protected

Now that we protect around 200 million active devices on all inhabited continents, we are thinking of how to expand to Antarctica. Negotiations with local penguins are underway.

Over 25 years of virus-fighting experience

Since 1988, we’ve been working hard to fight viruses, spyware, worms, and other malicious software in order to protect our users. We’ve gotten ourselves an impressive reputation in the meantime, and we work hard to live up to it. And if you think we don’t? Just take advantage of our thirty-day, no questions asked refund policy.

Experts frequently certify and award us

We hate bragging, but we can see you insist! We get awarded and certified often, by numerous independent, industry-related organizations and testing agencies. They praise us for the virus detection capabilities of our software, as well as for not slowing down your PC.