Avast One Free Antivirus for Windows
by Avast
The current free Avast One for Windows, combining Avast Free Antivirus with a unified hub for optional privacy and performance modules.

Avast One Free Antivirus is the no-cost starting tier of the current Avast One app. New installations receive Avast's newer modular interface, not the similarly named legacy Avast One product.
Editorial description
Avast One brings Avast Free Antivirus and optional Avast tools into one Windows dashboard. The free antivirus component supplies real-time file, behavior, mail, and web shields, several scan types, quarantine, Network Inspector, Software Updater, Do Not Disturb Mode, and ransomware controls. These layers can reduce exposure to known and suspicious threats, but no security product can guarantee that every harmful file or site will be detected.
This listing is specifically for the current free experience. Avast says new installations use the new Avast One, while the old Avast One is a legacy product. The app also presents paid modules and trials. Premium Security, SecureLine VPN, Cleanup, BreachGuard, and subscription tiers may appear in the same interface, but their paid capabilities are not part of the permanent free antivirus license.
It suits users who want active antivirus checks and maintenance prompts in a single app and do not mind upgrade offers. People who prefer the security built into Windows, a smaller interface, or no commercial upsells may want to compare alternatives. Keep Windows and virus definitions updated, review detections before deleting files, and retain backups of important data.
Features
Real-time Core Shields
File, Behavior, Mail, and Web Shields inspect relevant activity and can block suspicious content as it is opened or received.
Flexible malware scans
Run Smart, full, targeted, boot-time, or removable-media scans according to the area you need to check.
Network and update checks
Network Inspector looks for issues on connected networks, while Software Updater reports supported applications that need patches.
Quarantine and ransomware controls
Detected items can be isolated for review, and Windows users receive controls intended to limit unauthorized file changes.
Unified modular interface


