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Free Virus Scanner and Removal Tool

Don’t worry about viruses. Avast Free Antivirus scans and cleans the viruses currently on your device, and stops future viruses and threats from infecting your system. And it's 100% free and easy to use.

People love Avast Free Antivirus

6207 people rated us 4.7/5

Our best free virus scanner and virus cleaner

Avast finds and removes viruses faster, more thoroughly, and more accurately than any other virus scanner.

Avast Free Antivirus lets you:

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?

We’re not just talk

We’re really good at what we do, and the pros know it. That’s why we’re rolling in accolades, recommendations, and five-star reviews.


An antivirus trusted by over 400 million users

But don’t just take our word for it.

Mobiles? Macs? We’ve got it all covered

We also protect every device that needs virus security, including your Mac and mobile device (which are in danger of infection, too).

We’ve brought the same reliable scans and real-time protection PC users enjoy over to Mac with our free Avast Security for Mac. We then take things one step further and secure your network, guarding your home Wi-Fi network against intruders and threats.

For your favorite Android devices, we have another free solution: Avast Mobile Security for Android. Scan for viruses, get rid of them, and protect yourself from future infection. But it doesn’t stop there — we can also protect your photos, optimize your phone’s battery, help you find your device if it gets lost, and more.

Download our free virus scanner and remover

There’s no better way to find and destroy viruses than Avast Free Antivirus. And at the low, low price of $0, it’d be costlier not to have it protecting you.


How can I get rid of a virus?

The easiest way by far is by downloading a free virus scanner and removal tool, like Avast Free Antivirus. But if you want to learn how to remove a virus from a specific type of device, we’ve got you covered:

Can a Mac or mobile device get viruses, too?

Unfortunately, yes. Any device that can go online can get viruses. That includes mobile devices like phones and tablets, and even Macs — whose risk of getting infected with viruses has been growing every year. But while Android devices are much more likely to get viruses than iPhones/iPads, iOS devices are vulnerable to other security threats.

Is Windows Defender enough to protect my PC?

Windows Defender lacks many essential features that other free antiviruses provide, and routinely blocks safe or harmless files. It’s far better to use a professional free virus scanner and remover like Avast Free Antivirus to keep your data safe.

System requirements

We’re not demanding. All you need is a PC with Windows 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

Get free virus protection for PC with Avast Free Antivirus


Get free malware protection for Mac with Avast Security


Get free virus protection for Android with Avast Mobile Security


Get free threat protection for your iPhone with Avast Mobile Security