Download free antivirus software for your Windows 10 PC or laptop

Windows 10 reached end of life on October 14, 2025, which means Microsoft no longer provides security patches, enhancements, or support. To close that gap, Avast continues to offer real-time protection. Our updates still fully support Windows 10.

Download our award-winning, free antivirus for Windows 10. Avast One with Free Antivirus protects you against all types of malware, including viruses and ransomware. For complete online privacy, use our VPN for Windows 10.

Windows 10’s built-in security is basic and often insufficient for your online safety. Avast One with Free Antivirus goes beyond that, delivering full protection for your PC or laptop without slowing it down. You’ll get features like ransomware removal and advanced rootkit scanning that built-in protection lacks.

While Microsoft's Extended Security Updates (ESU) provides additional OS-level patches, Avast Antivirus offers comprehensive protection in areas ESU does not. The choice depends on your specific needs and budget.

No. Hackers and malware programmers become intimately familiar with built-in antivirus software like Windows Defender and often design threats to bypass it. Microsoft Defender will continue to offer detection and protection on Windows 10 and other legacy systems, but security tools on unsupported systems are inherently less secure and may not receive all new features. That makes it harder to stay ahead of the latest online threats.

While it offers some protection, the limitations of Windows Defender mean you’ll need a more advanced solution like Avast for full, reliable coverage.

Not at all. Avast’s top-rated Windows antivirus is designed from the ground up to be lightweight and accessible, and to protect your PC without leaving so much as a dent in your computer’s performance. Just install it and enjoy a PC free from malware and other threats.

Finding the best free antivirus for Windows is ultimately down to your personal choice. But Avast One with Free Antivirus could be ideal if you’re looking for free, award-winning cyberthreat protection that gives you handy extra security features too.

Our free app can help secure your home Wi-Fi and connected devices. It also gives you safer everyday online browsing and emailing. Plus, it can help monitor app behavior on your PC or laptop for malware-related activity, identify an issue, and deal with it.

Yes, Avast antivirus fully supports Windows 10. You can protect your device with advanced security features, ensuring safe browsing and seamless performance. Enjoy peace of mind knowing your system is secure against evolving threats. Get the most out of your Windows 10 experience with reliable protection.