Avast One Essential Review: Best Free Antivirus for Windows 2025

Avast One Essential is the updated free antivirus for Windows 2025 that goes far beyond basic protection. This solution delivers not only robust, real-time security but also an impressive suite of tools including a firewall, VPN, password manager, and a dedicated gaming mode. As a result, it stands out as one of the most feature-rich free antivirus options available today.

👉 This software is featured in our top 7 best free antivirus programs for Windows in 2025.

See the full top 7 best free antivirus for Windows 2025

Main Features

• Developer: Avast Software (Czech Republic, part of NortonLifeLock)
• Protection level: Among the top performers in AV-Test and AV-Comparatives
• Interface: User-friendly, modern, available in multiple languages
• OS Support: Windows, macOS, Android, iOS
• Updates: Frequent, several times a day

Pros and Cons

Pros:

• ✅ High level of real-time protection
• ✅ Rich set of features (firewall, VPN, password manager)
• ✅ "Do Not Disturb" mode for gamers
• ✅ Compatible across different platforms

Cons:

• ❌ Can be demanding on system resources during full scans
• ❌ Frequent prompts to upgrade to the paid version
• ❌ Officially unavailable in certain regions (VPN needed to download/update)
• ❌ Past reputation issues regarding user data collection

Performance and System Impact

In everyday use, Avast One Essential runs smoothly. However, during deep system scans, it can noticeably increase CPU usage, especially on older computers. Users with modern PCs likely won't notice slowdowns, but those with older hardware might experience lag. To help manage this, there's a scan scheduler that allows users to optimize when scans occur.

Additional Features

• VPN (data limit applies in the free version)
• Firewall (free access)
• Password manager
• Wi-Fi network vulnerability scanner
• "Do Not Disturb" mode for gaming and fullscreen apps

Who Is It For?

• Users seeking a comprehensive and free antivirus solution
• Owners of modern PCs and laptops
• Gamers who want an uninterrupted experience
• Anyone who wants maximum functionality right out of the box

Comparison with Competitors

Avast One Essential offers more features than Kaspersky Free and Bitdefender Free thanks to its built-in VPN, firewall, and password manager. Its functionality is on par with many paid products, although it does occasionally remind users about its "Pro" version. It tends to be heavier on system resources than AVG Free, although both share the same engine and similar levels of protection.

Conclusion

Avast One Essential is a top choice among free antivirus programs for anyone who needs more than just basic security features. With real-time protection, extra tools, and a gamer-friendly mode, it's a well-rounded solution. If your PC is powerful enough and you don't mind occasional upgrade prompts, Avast remains a leader in free antivirus rankings.

Compare Avast One Essential with other top free antivirus picks for 2025