We’ve packed the world’s largest threat-detection network and machine-learning malware protection into a single, lightweight malware scan and removal tool that won’t slow down your PC. And did we mention it’s 100% free?
Stop viruses, spyware, ransomware, and other malware threats with real-time antivirus protection. Our industry-leading malware-detection technology keeps you protected 24/7

Whenever a new threat is detected anywhere in our network of over 400 million users, we push anti-malware updates to you automatically — keeping you safe against new and emerging online security risks

Detect not only malware, but suspicious browser add-ons, outdated software, and other potential threats. Our AI-based global threat detection network always has your back, because you can never be too safe

Avast One doesn’t just fight malware, it also comes with built-in privacy and performance features to upgrade your digital lifestyle. Encrypt your data with a VPN, tune up your devices, and get much more

Avast One is filled with other free features, too, including a Do Not Disturb Mode to block unwanted distractions, a smart Behavior Shield that automatically detects suspicious activity, and a whole lot more — all 100% free

Get it for iOS, Android, PC
Get it for Mac, PC, Android
Get it for Android, iOS, Mac
We’re proud to have secured the coveted 2021 Editors’ Choice award from PCMag. “The new Avast One Essential incorporates all the powerful virus-fighting technology that’s made Avast famous.”
Avast One is powered by the same world-class antivirus engine that’s been winning awards for years. Independent security testing labs and industry experts agree that Avast’s cybersecurity protection is among the best in the world

PC Mag: Editors’ Choice, 2021
TechRadar: 5 stars, 2021
AV-TEST: Top Product, AV Test Certified, 2021
AV Comparatives: Top Rated Product Award, 2020
AV Comparatives: 2018 Product of the Year
AV Comparatives: Advanced+ in malware protection and removal, 2018
But don’t just take our word for it

The UI for your software - amazing. Great work over the years. Can't say enough good things!
Thank you, Avast, for the excellent work you do. I run your antivirus software on both my Mac OS X and my Windows machines. You have the best products on the market, period

I’ve been using Avast for over a year and have found it one of the best free software protection devices on market

Think your Mac is infected? Afraid you’ve downloaded malware to your Android phone or tablet?
Don’t panic. We’ve got you covered there, too

Our real-time antivirus for Mac scans for, removes, and stops all kinds of malware — from viruses to spyware to ransomware — as well as a wide range of other online threats to keep your Mac safe. Defend against phishing attacks and avoid malicious websites with the protection of one of the world’s largest threat-detection networks

Looking for free anti-malware for mobile? Avast’s antivirus protection for Android brings all the power of our award-winning cybersecurity apps directly to your phone. Scan for malware and remove it, secure your Wi-Fi connection, and protect against all sorts of malicious software and other internet threats

Avast One removes hidden malware, blocks future malware, and protects against nasty viruses, spyware, ransomware, and more. 100% free

Get it for iOS, Android, PC
Get it for Mac, PC, Android
Get it for Android, iOS, Mac
Free malware removal for Windows 10 comes pre-installed. But Windows Defender may not be enough to counter all threats to your system. For comprehensive security use an all-encompassing tool like Avast One, which will defend against malware, protect you from spoofing and phishing attacks, and enhance your privacy with a built-in VPN

Use an antivirus tool to remove any malware from your computer or phone

Reset your Chrome browser back to its default settings, make sure you have the best security extensions for Google Chrome, and remove any Chrome extensions you don’t want or trust

If your Chrome browser continues to act buggy, switch to a dedicated privacy browser like Avast Secure Browser that features powerful built-in protection

Get free malware protection for PC with Avast OneFREE DOWNLOAD
Get free malware protection for Mac with Avast OneFREE DOWNLOAD
Get free malware protection for Android with Avast OneFREE INSTALL
Get free malware protection for iPhone with Avast OneFREE INSTALL