We’re sorry, your browser appears to be outdated.
To see the content of this webpage correctly, please update to the latest version or install a new browser for free, such as Avast Secure Browser or Google Chrome.

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 400 million users worldwide trust Avast to keep them safe.
Also available for Mac, Android, and iOS
2021
Editors' Choice
2022
Top Rated Product
2023
Top Product
2023
Best Free Anti-Malware
Award-winning free antivirus
Easy to install and simple to use
Wi-Fi network security
30+ years of protecting our users

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
Windows 10 provides very basic protection but adding Avast’s antivirus program gives you powerful real-time protection against viruses and other malware, and it even includes advanced features, like security for your home Wi-Fi network — all completely free.
Safely shop, bank, and browse
Keep your sensitive, personal, and financial information private and secure. Get alerts and block potentially fake or malicious websites, programs, and applications to ensure you’re not allowing malware onto your device or giving your data to criminals.
Stop ransomware attacks
Keep your sensitive information safe and for your eyes only. Secure your personal photos, files, and documents so hackers can’t access them, lock them, change them, or hold them hostage in ransomware attacks.
Avast

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.

World-class protection
We’re proud to protect our users but we’re also proud of the many top awards our antivirus has earned.
435+ million users
Our vast global user base means we have the largest threat detection network in the industry — so we catch new threats fast.
30+ years of experience
When it comes to creating an antivirus that protects you from all angles — we know exactly what it takes.

Easy to install, effortless to use

Installing Avast Free Antivirus for Windows 10 just takes moments, and it’s simple to use. Clear interfaces and settings allow you to set and automate your security, so it’s always running quietly in the background, protecting you in real time, 24/7. And it’s always free — so give it a try now.

It’s free forever

Get advanced Windows 10 antivirus protection against online threats like viruses and other malware, for free. But we don’t stop there. We offer extra security features such as behavior shield, remote assistance, browser cleaning and more — yep, you guessed it — completely free.

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.

Number of attacks prevented against Windows 10 PCs over recent months:

Number of attacks prevented against Windows 10 PCs over recent months:

Here’s what our users say:

“...earns excellent scores in our hands-on tests and independent lab tests...it offers much more than many competing commercial products...”
“Awarded Outstanding Security Product 2021 by AV-Comparatives.”
Avast Free Antivirus
Fix security issues fast, plus more
Avast’s antivirus scans for security and performance issues and helps you to fix them instantly. It also protects you in real time by analyzing unknown files long before they reach your Windows 10 PC. And it’s free — so give it a try.
Free download
Also available for Mac, Android, and iOS

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.

You may still be wondering...

Share this article
Close
Almost done!
Complete installation by clicking your downloaded file and following the instructions.
Initiating download...
Note: If your download did not start automatically, please click here.
Need Help? Please call 855-745-3255
Click this file to start installing Avast.
Close
Installation of the antivirus is almost complete!
Complete installation by clicking your downloaded file and following the instructions.
Initiating download...
Note: If your download did not start automatically, please click here.
Need Help? Please call 855-745-3255
Click this file to start installing Avast.