Download free antivirus software for Windows 10
Get Avast Free Antivirus, our free award-winning antivirus software. Protect your Windows 10 PC against viruses and other malware, plus strengthen your privacy. Over 435 million users worldwide trust Avast to keep them safe.
On a Mac? Download this instead
Android user? Click here Download this instead
Using Windows 8.1? Download this instead
Using Windows 8? Download this instead
Using Windows 7? Download this instead
Using Windows XP? Download this instead
Using Windows Vista? Download this instead
You get more than just Windows 10 antivirus
As we increasingly live our lives online, threats to our security and privacy have become more sophisticated. That’s why we’ve included some advanced tools alongside our powerful antivirus software for Windows 10.
Get protection that goes above and beyond
Safely shop, bank, and browse
Stop ransomware attacks
You can rely on Avast to protect you
Here’s why Avast is one of the most trusted, reliable, and experienced cybersecurity experts in the world.
30+ years of experience
435+ million users
Easy to install,
effortless to use
Around-the-world, around-the-clock protection
We’re proud to protect millions of Windows PCs. But don’t just take our word for it — see the graph below which shows that Avast has prevented 6 307 725 571 virus attacks on Windows 10 PCs over recent months.
We’re proud to protect millions of Windows PCs. But don’t just take our word for it — see the graph below which shows that Avast prevented 6 307 725 571 virus attacks on Windows 10 PCs in the United States just last week.
We’re proud to protect millions of Windows PCs. But don’t just take our word for it — see the graph below which shows that The United States’ Windows 10 PCs are the third most attacked in the world.
Number of attacks prevented against Windows 10 PCs over recent months:
Here’s what our users say:
Already have Avast? We’ve got you covered
If you’re planning on upgrading from older versions of Windows, such as XP, Vista, 7, 8 or 8.1, we’re ready to keep your new Windows 10 PC virus-free. Just make sure you’re running the latest version of Avast before you upgrade your machine, and when you finish the transition to Windows 10, you’ll find us there, right where you left us, ready to protect your PC and everything you hold dear in it. The same process applies if you're upgrading to Windows 11.
How to install
2. Open the file
3. Install the file
You may still be wondering...
How can I protect my Windows 10 PC from viruses and other malware?
Why use antivirus software on Windows 10?
Is Windows Defender enough to protect my PC?
Will Avast have any negative impact on the performance of my Windows 10 PC?
How can I fix Avast Free Antivirus if it stops working after a Windows 10 upgrade?
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