Our award-winning antivirus secures you against online threats.

1. We recommend using a comprehensive antivirus solution to protect your Windows PCs. Although Windows Defender is built into Windows 10, its anti-malware capabilities may not be sufficient to combat ever-evolving threats. Download our free.
2. Download Avast Antivirus 2018 for PC on Windows 10/8/7 for free. Compatible with Windows 10, 8, 8.1, 7, Vista and XP (32-bit or 64-bit). The quick scan for viruses and malware, scan for outdated software, browser scan. Download Avast Antivirus 2018 Offline Installer for Windows XP, Vista, 7, 8, 8.1, 10.

Avast Antivirus Free. Avast Antivirus Pro. Avast Internet Security. Avast Premium Security (formerly Premier) Download. Avast Security for Mac (macOS 10.10 Yosemite or later) Download. Avast Security for Mac (macOS 10.9 Mavericks or later) Download. Avast Free Antivirus on 32-bit and 64-bit PCs. This download is licensed as freeware for the Windows (32-bit and 64-bit) operating system on a laptop or desktop PC from antivirus without restrictions. Avast Antivirus 6 is available to all software users as a free download for Windows. Free Avast antivirus software has been used by more than 435 million users. Avast provides 100% protection for your PC from any viruses, Trojan horses, spyware, ransomware, spam and all malware. Avast Free Antivirus Offline Installer 2020 is the best free computer, laptop, tablet and PC antivirus software.

Protect your PC against online threats

With the industry’s leading detection rates, Avira Free Antivirus protects you from viruses, worms, Trojans, ransomware, spyware, adware, and rootkits.

Top protection, performance, and usability on Windows 10

With a low system impact, near-perfect detection rates, and intuitive interface, Avira Free Antivirus delivers a smooth-running solution that doesn’t slow you down and always has your back.

Compare Defender with Avira

Windows Defender offers essential protection against malware. Avira Free Antivirus delivers outstanding security with intelligent learning algorithms and award-winning detection technology. With Avira, you’re protected in real time against both known and unknown threats.

Migrate smoothly towards Windows 10

If you’re thinking of upgrading from Windows 7 or 8 to Windows 10, you can do so with Avira Free Antivirus, which is fully compatible with and optimized for all 3 operating systems.

Enjoy a multi-award-winner

We have received top awards for our protection, performance, and repair capabilities.

Professional-grade, lightweight protection. Download Avast Free Antivirus for free and enjoy!

Improved Threat Detections
Using Artificial Intelligence (AI), Avast 2019 ensures enhanced detection of phishing websites by automatically checking a site's URL for suspicious tokens, domain meta information, and inspecting the visual aspects of sites. This unique technology allows Avast to recognize new phishing sites in seconds, protecting Avast users across all platforms from falling victim of phishing scams and other fraudulent emails.

Do Not Disturb Mode
Avast's new Do Not Disturb Mode silences alerts including those from third party applications, such as Windows, email, chat and browser notifications while users run applications in full screen. Do Not Disturb Mode is a free feature and prevents applications from distracting or embarrassing users while gaming or presenting.

Sensitive Data Shield
Sensitive Data Shield is a feature that protects premium Avast customers with an additional safety net from cybercriminals and spies. The feature identifies sensitive files, such as tax files, health records, and travel documents, and gives users the option to ???shield??? and protect access to these files. This way, unauthorized third parties and programs, such as malware, are unable to read and alter the files, allowing users to take back control of their sensitive data.

Improved Smart Scan
Avast's Smart Scan feature combines scans for viruses, software updates, network problems, and performance issues into one concentrated scan. It allows free and premium users to check for a range of issues with just one click and has been optimized to scan and identify any problems with the PC, twice as quickly as before.

Enhanced network security
Avast's Wi-Fi Inspector feature, a free feature which scans routers, PCs, mobile and IoT devices connected to users' network and provides solutions on how to fix issues found, has been enhanced for improved device identification and more thorough detection of security vulnerabilities and similar weaknesses. The feature displays devices found on the network in a detailed map, making it easier for people to navigate and control the devices connected to their local network.

How to uninstall Avast Free Antivirus in Windows 10 / Windows 7 / Windows 8 / Windows Vista?

How do I uninstall Avast Free Antivirus in Windows XP?

Avast Free Antivirus Windows 10