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Free Malware Scanner and Removal Tool

Scan for and remove malware and other threats. Avast One offers free, real-time anti-malware protection against current and future infections. Secure your devices with the malware-fighting software awarded 5 stars by TechRadar and that won PCMag’s Editors’ Choice award for 2021.

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Scan and remove malware for free

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?

Avast One lets you:

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.

Stay safe with award-winning malware protection

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.”

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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.

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    PC Mag: Editors’ Choice, 2021

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    TechRadar: 5 stars, 2021

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    AV-TEST: Top Product, AV Test Certified, 2021

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    AV Comparatives: Top Rated Product Award, 2020

  • award-av-comparative-plkaceholder

    AV Comparatives: 2018 Product of the Year

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    AV Comparatives: Advanced+ in malware protection and removal, 2018

Anti-malware protection trusted by over 400 million users

But don’t just take our word for it.

Get rid of malware from your Mac or mobile, too

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.

Download our free malware cleaner

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

FAQs

What is the best free malware removal software?

Avast’s antivirus solution regularly receives top marks in lab testing, and it’s been named the best free antivirus software in a variety of product reviews, including winning AV-Comparatives' 2021 Outstanding Product Award. There are many free malware removal and antivirus options available, but few with the threat-detection capabilities of Avast.

Does Windows 10 have a malware scanner?

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.

How do I remove malware for free?

The easiest way to remove malware from your computer is to use a free virus removal tool like Avast One that will scan for and remove existing malware, as well as prevent future infections. Avast One is compatible with all devices, so you can scan for, detect, and remove malware on Mac, iPhone, and Android too.

How do I know if I have malware?

Common symptoms of malware include an overheating computer, slow speeds, repeated crashes, adware, loss of disk space, and the sudden appearance of unknown programs. Malware may also redirect you to suspicious websites. If your phone’s been hacked, you’ll likely notice data-usage spikes and app crashes. If you think you may have malware, run an anti-malware scan to find out.

How can I get rid of malware on Chrome?

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

  2. 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.

Can antivirus software remove malware?

Reliable antivirus software like Avast Free Antivirus features comprehensive anti-malware tools — Trojan removers, rootkit scanners, anti-spyware tools — that will remove malware and block future infections in real-time.

Is anti-malware an antivirus?

These days, there’s no real difference between quality antivirus software and anti-malware. Beyond computer viruses and worms, security software now needs to defend against a much wider range of cyberthreats including keyloggers, phishing, cracking, and other vulnerabilities that can be exploited. So while anti-malware is an antivirus, it’s also much more. And any antivirus worth its salt must be able to identify and block the array of today’s online threats.

System requirements

We’re not demanding. All you need is a PC with Windows 11, 10, 8.1, 8 or 7*, 1 GB RAM 
and 2 GB of hard disk space. And that’s it.

* Both the 32- and 64-bit versions, excluding Starter and RT editions.

Windows 10 compatible

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Editor's
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Get free malware protection for PC with Avast One

FREE DOWNLOAD
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Editor's
choice

Get free malware protection for Mac with Avast One

FREE DOWNLOAD
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Editor's
choice

Get free malware protection for Android with Avast One

FREE INSTALL
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Editor's
choice

Get free malware protection for iPhone with Avast One

FREE INSTALL