How to use Avast One | Avast

Avast One - Getting Started

Avast One is currently available only in Australia.

To learn more about Avast Premium Security or Avast Mobile Security Premium instead, refer to the relevant article below:

Avast One is a security and optimization tool that scans your PC to identify unnecessary items and performance issues, frees up disk space to improve the speed of your system, and allows you to browse safely and privately online.

Avast One is a security and optimization tool that scans your Android to identify unnecessary items and performance issues, frees up space to improve the speed of your device, and allows you to browse safely and privately online.

Avast One is a security and privacy tool that scans your iOS device to identify potential security issues, and allows you to browse safely and privately online.

This article assumes that the latest version of Avast One is installed and activated on your device. For detailed instructions, refer to the following articles:


Review alerts or run Smart Scan

Each time you open Avast One, you see alerts that need your attention. If you are using Avast One for the first time, or you have no immediate alerts to resolve, you have the option to run Smart Scan.

Review alerts

ClickTap an alert, then follow the on-screen instructions to resolve it. Alerts notify you about the following issue types:

  • Disconnection issues
  • Scan reminders
  • Leaked data

Run Smart Scan

Select Run Smart ScanSmart Scan and follow the on-screen instructions. Smart scan detects the following issues on your device:

  • Bad browser add-ons
  • Viruses and malware
  • Vulnerable software
  • Vulnerable apps
  • Performance issues

Protect your device

Avast One includes many protection features, such as scans and shields, which help your device run safely and alert you about harmful files and connections. To use these features and manage their settings:

Avast One includes Web Shield, which monitors the websites you connect to, and alerts you about harmful files and connections. To enable Web Shield and view its activity:

  1. Click the Device Protection tile on the Avast One dashboard.
  2. Select one of the following features:
    • Scans: Run Deep Virus Scan, Targeted Scan, Boot Time Scan, and Disk Clean.
    • File Shield: Manage settings for File Shield, which scans each file as you open it.
    • Ransomware Shield: Protect specific folders and file types from being corrupted by ransomware. From here, you can also block or allow specific apps that try to access your protected folders and file types.
    • Web Shield: Manage settings for Web Shield, which blocks web attacks and unsafe downloads. From here, you can also click Show Blocked websites to add a website that you want to block.
    • Firewall: Define which programs and services on your PC can connect to the internet, and how. Select Block next to a service you don't want to connect to the internet. From here, you can also specify whether you want your PC to be visible or hidden. We recommend keeping your PC hidden unless you want to connect to another device on a private network.
    • Virus Chest: Add files to the Virus Vault, which acts as a quarantine for suspicious files. From here, you can send them to Avast Threat Labs for analysis, restore the files, and add the files as exceptions.
    • Sensitive Data Shield: Protect files containing sensitive personal data, such as passwords and banking information, from unauthorized access and malware.
    • Real Site: Secure your URLs, and prevent hackers from redirecting you to fake websites by hijacking your DNS (Domain Name System) settings.
    • Password Protection: Ensure no websites or programs on your PC can access your saved passwords without your permission. Select Silently block the app to allow Avast One to block any app trying to access your saved passwords. Click the drop-down menu under either List of blocked apps or List of allowed apps to add an app to the relevant list.
  1. Tap the Device Protection tile on the main Avast One screen.
  2. The following features are available:
    • Quick Scan: Scan Avast One and device settings for potential security gaps and malware. You can also enable Auto-run Quick Scan, which schedules Quick Scan to run once every day.
    • File Scan: Scan a specific file or folder for vulnerability issues and malware.
    • Deep Scan: Scan your entire device for potential security gaps. This scan may take several minutes to complete.
    • Web Shield: Enable this shield to allow Avast One to alert you when a website you're trying to visit is dangerous.
    • Malware shields: Manage behavior for App Shield, File Shield, and Low-reputation apps.
    • Virus database: Enable Auto-update only over Wi-Fi to ensure the virus database is always up to date, so Avast One knows what the scan for.
    • Ignored issues: Return to previously ignored alerts to resolve them.
  1. Tap the Device protection tile on the main Avast One screen.
  2. Tap Start Web Shield.
  3. If prompted, tap Allow, then follow the on-screen instructions to grant permissions for VPN configurations, which allow you to enable Web Shield.
  4. After Web Shield is enabled, tap Phishing websites detected to see the threats Web Shield has detected.

Web Shield is now enabled and actively monitoring your online connections.

Browse privately

Avast One includes a Virtual Private Network (VPN) feature, which disguises your real IP address while you browse online. To connect to the VPN:

Avast One includes useful security features, such as a Virtual Private Network (VPN) that disguises your real IP address while you browse online, and a Wi-Fi scan that checks the networks you're connected to for security risks. To use these features:

Avast One includes a Virtual Private Network (VPN) feature, which disguises your real IP address while you browse online. To connect to the VPN:

  1. Click the Secure Connection tile on the Avast One Dashboard.
  2. Click the slider so that it changes from red (OFF) to green (ON).
  3. Optionally, allow the VPN to connect automatically by ticking Turn on VPN automatically.

Your PC is now connected to the VPN.

  1. Tap the Secure Connection tile on the main Avast One screen.
  2. Select from the following actions:
    • Connect VPN: Tap this option to enable the VPN connection. To change your connection location, tap the current location, then select a new location from the list.
    • Scan Wi-Fi: Tap this option to check the networks your device is connected to for security risks. Optionally, tap the slider next to Auto-scan Wi-Fi so that it changes from white (OFF) to green (ON) to allow Avast One to scan every new network your device connects to.
  1. Tap the Secure Connection tile on the main Avast One screen.
  2. Tap the Enable VPN.
  3. If prompted, read the Avast Privacy Policy, then tap Accept.
  4. Optionally, tap the location at the bottom of the Secure Connection screen to change your server location.

VPN is now enabled on your iOS device. To connect to the VPN, tap Start VPN.

Protect your identity

Avast One's built-in identity protection features protect your personal data and alert you if a breach occurs. To use these features and manage their settings:

Avast One's built-in identity protection feature protects your personal data and alerts you if a breach occurs. To use this feature:

  1. Click the Personal Identity tile on the Avast One Dashboard.
  2. Select one of the following features:
    • Data Leak Monitoring: Monitors your email addresses for leaks, and alerts you if any breaches occur.
    • Browser Cleaner: Deletes browser history and cache that track you as you browse online.
    • Webcam Shield: Blocks applications and websites from accessing your webcam without your permission.
  1. Tap the Personal Identity tile on the main Avast One screen.
  2. Enter the email address you want to check for data leaks, then tap Check For Breaches. Wait while Avast One checks if your added email address has been involved in any online data breaches.
  3. Select Add Account to see details to sign in to your Avast Account and continue monitoring the email address in real time.

    Alternatively, select Done to return to the main Personal Identity screen.
  1. Tap the Personal Identity tile on the main Avast One screen.
  2. Tap Add email address.
  3. Enter the email address you want to check for data leaks, then tap Add email. Wait while Avast One checks if your added email address has been involved in any online data breaches.

Avast One is now monitoring your email address for data leaks in real time.

Boost performance

When you use the performance tools regularly, they can enhance your PC's performance, clear disk space, and eliminate unwanted programs and security risks. To use the performance features:

When you use the Performance Scan regularly, it can enhance your device's performance by clearing storage space, and silencing apps in the background. To use Performance Scan:

  1. Click the Smooth Performance tile on the Avast One dashboard.
  2. Select one of the following features:
    • Scan For Junk: Runs a Smart Scan, which detects bad browser add-ons, viruses, vulnerable software, and other performance issues that may be lurking on your PC.
    • Disk Cleaner: Clean redundant or unnecessary files found during Avast One scans.
    • Software Updater: Update outdated programs on your PC. From here, you can also allow Software Updater to automatically update outdated programs without notifying you.
    • App Optimizer: Put background apps to sleep and preserve your PC's resources for the apps you want to run.
  1. Tap the Smooth Performance tile on the main Avast One screen.
  2. Tap Performance Scan to check your device for junk files and unused apps. Wait while Avast One scans your device, which may take several minutes.
  3. Tap Boost to resolve all found issues. Alternatively, select Continue to skip resolution and go back to the main Performance screen.
  4. On the main Performance screen, tap the slider next to Automatically free up space so that it changes from white (OFF) to green (ON). Enabling this option allows Performance Scan to scan and remove junk on your device every day.

Manage settings

To manage settings in Avast One, go to the User icon ▸ Settings, then scroll to one of the following settings:

To manage settings in Avast One, tap the User icon ▸ Settings, then select one of the following settings:

  • Update: Update virus definitions and application version to ensure you're using the latest version of Avast One.
  • Notifications: Specify which notifications you want to see from Avast.
  • Exceptions: Define websites, files, and folders you want to exclude from all scans and shields.
  • Password: Create a password for Avast One and specify which parts of the app it protects.
  • Personal Privacy: Read Avast's Privacy Policy and Product Policy, and opt out of threat and app-usage data sharing.
  • Troubleshooting: Enable Passive Mode, delay Avast startup, repair the Avast app, and back up or reset app settings.
  • Privacy Settings: Read Avast's Privacy Policy and Product Policy. To opt out of threat and app-usage data sharing, tap the slider next to an option so that it changes from green (ON) to white (OFF).
  • Notifications: Specify which notifications and reminders you want to see from Avast. To disable a notification or reminder, tap the green (ON) slider so that it changes to white (OFF).

Further recommendations

For more information about Avast One's features, refer to the following article:

  • Avast One 21.x for Windows
  • Avast One Free 21.x for Windows

  • Avast One 1.x for Android
  • Avast One Free 1.x for Android
  • Avast One 1.x for iOS
  • Avast One Free 1.x for iOS
  • Microsoft Windows 10 Home / Pro / Enterprise / Education - 32 / 64-bit
  • Microsoft Windows 8.1 / Pro / Enterprise - 32 / 64-bit
  • Microsoft Windows 8 / Pro / Enterprise - 32 / 64-bit
  • Microsoft Windows 7 Home Basic / Home Premium / Professional / Enterprise / Ultimate - Service Pack 1 with Convenient Rollup Update, 32 / 64-bit

  • Google Android 5.0 (Lollipop, API 21) or later

  • Apple iOS 13.0 or later

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