Protect your Windows PC with Avast Free Antivirus

The world’s most trusted Windows antivirus is ready to keep your data safe.

Free download

Our users love Avast Free Antivirus for Windows

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Windows 10 full protection

Make Windows run at its best

Using cloud-based processing, our antivirus keeps your computer safe without slowing it down. In fact, with our powerful PC optimizing tool Avast Cleanup, we can help things run even faster. Between keeping your PC safe and running at its best, Avast is a win-win for Windows users.

Safe upgrade to Windows 10

Keep malware away from your Windows PC

AV Comparatives tested Avast’s ability to stop malware from infecting Windows PCs and the results were clear: we stopped 100% of the zero-day malware they threw at us. Combined with our suite of security features, like Firewall and Sandbox, no threat, new or old, will ever put your data or your Windows PC at risk.

Approved antivirus for Windows 10

A Microsoft-backed antivirus for Windows

As one of Microsoft's official consumer security software providers, Avast is trusted by 400 million people around the world as their free antivirus of choice in an increasingly dangerous online world.

Avast Antivirus is compatible with Windows 10, 8.1, 8, 7, Vista, XP SP3

Avast also offers you security solutions for your Android and Mac

Your voice matters

You, and the data you need to protect, are the reason we’re here. Be sure to let us know how we’re doing, and how we can improve, so we can continue to keep what you hold dear protected from online threats.

Avast Free Antivirus for Windows 10
5

It's clean, easy, and works.

Avast Free Antivirus for Windows 10
4

It's very easy program

Avast Free Antivirus for Windows 10
5

easy to used < its the best

Avast Free Antivirus for Windows 10
5

I love Avast, I have used it for at least 5 years or maybe more. will continue to do so

Avast Free Antivirus for Windows 10
5

easy to used < its the best

Avast Free Antivirus for Windows 10
5

easy to use and download

Avast Free Antivirus for Windows 10
5

I love that it protects my computer, cell phone, and even my iPod. And I only have to have one account! Super easy

Avast Free Antivirus for Windows 10
5

Years and years using this software, I like it and lots of friends and family are using it too. If your computer is infected it goes straight to the base of your O.S. and kill the virus. Love it !

Avast Free Antivirus for Windows 10
5

It is the best antivirus on the market. Very efficient and easy to use. Would definitely use again and again.