Avast has been stopping ransomware for years, and we’re only getting better with age. We’ll keep your computer and all your files safe from this threat.
Six layers of security ensure we catch ransomware well before it has a chance to do any damage to your data.
New and improved ransomware floods the internet daily, but we upgrade our software every few minutes to keep you ahead of the tide.
We’re not one-trick ponies: we’ll stop any malware that’s putting your PC, your data, or your peace of mind at risk.
Avast One does a whole lot more than remove and prevent ransomware and other malware — it defends you against phishing attacks, Wi-Fi snoops, data thieves, and more.
We’ve packed the world’s largest threat-detection network and machine-learning ransomware protection into a comprehensive security and privacy tool that won’t slow down your PC. And it’s 100% free.
When it comes to Avast One, the pros agree: you get top-tier protection. PCMag named Avast One a 2021 Editors’ Choice, citing its “numerous excellent lab scores” and praising Avast One as “a partner to keep you, your devices, and your data safe and happy.”
In their 5-star review, TechRadar praised Avast One for its malware protection and prevention strengths alike: “Avast One doesn't just do a good job of detecting malware: it detects and blocks access to malicious websites, reducing the chance you'll get infected in the first place.”
Avast’s top-performing cybersecurity engine has been garnering prestigious awards for years:
AV-TEST: Top Product, AV Test Certified, 2022
PC Mag: Editors’ Choice, 2021
TechRadar: 5 stars, 2021
AV Comparatives: Top Rated Product Award, 2020
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.
Ransomware doesn’t only try to hold your PC hostage, it will try to encrypt your files on any device it can access, including your Mac and your mobile phone. Avast’s free antivirus software can protect and remove the underlying ransomware malware from those devices.
Avast’s antivirus software for Mac improves your Mac’s impressive built-in security with specialized protection against threats of all kinds. Our leading security tool fights malware like ransomware and viruses while also countering phishing attacks, malicious websites, Wi-Fi snoops, and other threats.
Android devices are vulnerable to ransomware, too. Avast’s free Android security tool gives your phone the same ransomware-stopping power your PC enjoys. With one of the world’s largest threat-detection networks, our security app protects against mobile malware while also helping you avoid phishing attacks and Wi-Fi threats.
Avast One is the best free anti-ransomware tool you can get to keep your PC safe, or to remove ransomware from an infected system. And best of all? It’s absolutely free.
Windows 10 and 11 both have built-in features that can help protect against ransomware. To enable Windows ransomware protection, find Ransomware protection under the Virus and threat protection tab within the Windows Security app and turn on Controlled folder access.