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Installing and Activating Avast One apps

These instructions are for the new version of Avast One. For information about setting up the old Avast One, refer to the following articles: Installing Avast One ▸ Installing the old version of Avast One
These instructions are for the new version of Avast One. For information about setting up the old Avast One, refer to the following articles: Installing Avast One ▸ Installing the old version of Avast One

Avast One is an all-in-one digital guardian that allows you to access and manage multiple Avast applications. It is designed to simplify your experience by consolidating various security, privacy, and performance tools into one customizable platform.

Through Avast One on Windows, you can use the following apps:

  • Avast Antivirus for Windows (a free version is included in Avast One by default)
  • Avast SecureLine VPN for Windows
  • Avast Cleanup for Windows
  • Avast Driver Updater for Windows
  • Avast BreachGuard for Windows
  • Avast Privacy Control for Windows (US only, replaces Avast BreachGuard for new users)
  • Avast Secure Identity for Windows (US only)

Through Avast One on Mac, you can install the following apps:

  • Avast Antivirus for Mac (a free version is included in Avast One by default)
  • Avast SecureLine VPN for Mac
  • Avast BreachGuard for Mac
  • Avast Cleanup for Mac

After purchasing one of these subscriptions, you need to install Avast One, then activate your app through it.

Install Avast One

To install Avast One, follow the steps below:

  1. Click the button below to download the latest version of Avast One for Windows:
    Download Avast One for Windows
  2. Once the download is finished, open the avast_one_free_antivirus.exe file (by default, downloaded files are saved to your Downloads folder).
  3. Click Install and follow the on-screen instructions to complete the installation process. For detailed instructions visit the following article: Installing Avast One.

Once Avast One is installed, you can activate your Avast apps through it either by signing in to the application with your Avast Account credentials or by entering a valid activation code.

  1. Click the button below to download the Avast One setup file, and save it to a familiar location on your Mac (by default, downloaded files are saved to your Downloads folder).
    Download Avast One for Mac
  2. Double-click the downloaded setup file avast_one_online.dmg.
  3. Double-click the Avast One icon.
  4. In the new window, click Allow.
  5. Click Continue to confirm that you accept the Avast Privacy Policy.
  6. Click Continue to confirm that you have read the End User License Agreement, then click Agree to confirm that you accept the terms.
  7. Select the users who should have access to Avast One, then click Continue.
  8. Click Install to proceed with default installation. Alternatively, click Change Install Location... if you want to make changes to the default setup.
  9. Enter the password that you use when you start your Mac, then click Install Software. If prompted, enter this password again, and click Update Settings.
  10. When the System Extension Blocked notification appears, click OK.
  11. Click Close ▸ Move to Trash.
  12. Click Continue.
  13. Click Open, then follow the on-screen instructions to allow permissions for Avast One. For detailed instructions, refer to the following article:
  14. Click Got it.

Once Avast One is installed, you can activate your Avast apps through it either by signing in to the application with your Avast Account credentials or by entering a valid activation code.

You can install the free versions of Avast BreachGuard and Avast Cleanup by following the steps described in these articles:

Activate Avast One apps

To activate premium features in Avast One, you can choose from three available methods: signing in with an Avast Account linked to a valid subscription, using a one-time passcode, or entering an activation code. This article provides instructions for each activation method.

Activate via one-time passcode

An Avast Account is required to use a one-time passcode. This account was automatically created using the email address you provided during your subscription purchase. To sign into your Avast Account for the first time, refer to the following article: Activating your Avast Account.

To activate premium features in Avast One using a one-time passcode:

  1. Open Avast One, then go to … Menu ▸ Sign in.
  2. Click Request one-time passcode.
  3. Enter the email address associated with your Avast Account, then click Continue. An email containing a temporary passcode is sent to the email address you provided.
  4. Enter the passcode you received in your email inbox, then click Verify.
  5. All apps associated with your Avast Account are installed and activated automatically.

Avast One is now active. To view your subscription details, go to … Menu ▸ My Account. The renewal date or the expiration date of your subscription appear under Active subscriptions. You can activate your app on the number of devices you specified when making the purchase.

If activation is unsuccessful, refer to the Troubleshoot activation issues section below.

Activate via activation code

Your activation code is most commonly found in the order confirmation email you receive after purchasing an Avast subscription. For detailed instructions on how to locate your activation code, refer to the following article: Locating your Avast activation code.

To activate premium features in Avast One using an activation code:

  1. Open Avast One, then go to … Menu ▸ Enter activation code.
  2. Type or paste your activation code (including hyphens) into the text box, then click Next twice.
  3. All apps associated with your activation code are installed and activated automatically.

Avast One is now active. To view your subscription details, go to … Menu ▸ My Account. The renewal date or the expiration date of your subscription appear under Active subscriptions. You can activate your app on the number of devices you specified when making the purchase.

If activation is unsuccessful, refer to the Troubleshoot activation issues section below.

Activate via one-time passcode

An Avast Account is required to use a one-time passcode. This account was automatically created using the email address you provided during your subscription purchase. To sign into your Avast Account for the first time, refer to the following article: Activating your Avast Account.

To activate premium features in Avast One using a one-time passcode:

  1. Open Avast One, then go to ☰ Menu ▸ Sign in.
  2. Click Request one-time passcode.
  3. Enter the email address associated with your Avast Account, then click Continue. An email containing a temporary passcode is sent to the email address you provided.
  4. Enter the passcode you received in your email inbox, then click Verify.
  5. All apps associated with your Avast Account are installed and activated automatically.

Avast One is now active. To view your subscription details, go to ☰ Menu ▸ My subscriptions. The renewal date or the expiration date of your subscription appear under Active subscriptions. You can activate your app on the number of devices you specified when making the purchase.

If activation is unsuccessful, refer to the Troubleshoot activation issues section below.

Activate via activation code

Your activation code is most commonly found in the order confirmation email you receive after purchasing an Avast subscription. For detailed instructions on how to locate your activation code, refer to the following article: Locating your Avast activation code.

To activate premium features in Avast One using an activation code:

  1. Open Avast One, then go to ☰ Menu ▸ Enter Activation Code.
  2. Type or paste your activation code (including hyphens) into the text box, then click Next twice.
  3. All apps associated with your activation code are installed and activated automatically.

Avast One is now active. To view your subscription details, go to ☰ Menu ▸ My subscriptions. The renewal date or the expiration date of your subscription appear under Active subscriptions. You can activate your app on the number of devices you specified when making the purchase.

If activation is unsuccessful, refer to the Troubleshoot activation issues section below.

Create desktop shortcuts

You can create a desktop shortcut for each app available through Avast One. To add a shortcut:

  1. Open Avast One, then go to … Menu ▸ Settings.
  2. Select Shortcuts on the left panel, then click Add shortcut next to an app.

A desktop shortcut is created for the selected app.

Deleting a desktop shortcut does not uninstall the app. It only removes the icon from your Windows desktop.

Troubleshoot activation issues

If you experience activation issues, review the information below, which explains how to resolve some of the most common activation issues.

  • Use your Avast Account to retrieve a copy of your activation code to exclude the possibility that the issue is caused by the activation code. For detailed instructions on how to find an activation code via your Avast Account, refer to the following article:
  • If you see an error message during activation, refer to the following article for advice:
  • Try following the instructions to activate using your Avast Account instead. For detailed instructions on how to create an Avast Account, refer to the following article:
  • Completely uninstall and then reinstall Avast One. This can resolve issues that are caused by incorrect configuration or corrupted files. We recommend following the exact steps in the articles linked below: After reinstallation, try activating your subscription again.

If you are still unable to activate your subscription, contact Avast Support.

The new Avast One for Android is replacing both the previous Avast One app and Avast Mobile Security. As part of this change, the older apps are being removed from the Google Play Store. All new installations on Android install the new Avast One app.

Avast One for Android is a security app designed to protect your device against unwanted phishing, malware, spyware, and malicious viruses such as Trojans.

After purchasing a subscription, install Avast One and then activate the app.

Install Avast One

To install Avast One, follow the steps below:

  1. On your Android device, tap the button below to open the Avast One app page in Google Play Store.
    Go to Google Play Store
    The new Avast One app may not yet be visible to all users in Google Play Store. Availability is being updated gradually as Avast Mobile Security is replaced.
  2. Tap Install to download and install the app. When the installation is complete, tap Open.
  3. Tap Already purchased?.
  4. The following options are available:
    1. Sign in to your account: Connect your subscription using your Avast Account credentials.
    2. Use an activation code: Enter the activation code for your Avast One subscription.
    3. Restore from Google Play: If you purchased Avast One through Google Play, follow the on-screen instructions to restore your subscription. Ensure you are signed in to Google Play Store with the same Google Account that you used to make the purchase.

Once Avast One is installed, for detailed activation instructions, refer to the section below.

Activate Avast One

To activate premium features in Avast One, you can sign in with an Avast Account linked to a valid subscription, enter a valid activation code, or restore your subscription through Google Play Store. This article provides instructions for all activation methods.

Enter activation code

To activate Avast One using an activation code:

  1. Tap Use an activation code.
  2. Type or paste your activation code (including hyphens) into the text box, then tap Next.

Avast One is now activated. If activation is unsuccessful, refer to the Troubleshooting section below.

Restore via Google Play

This option only applies if you purchased your Avast One subscription through Google Play Store.

Tap Restore from Google Play.

Avast One is now activated. If activation is unsuccessful, refer to the Troubleshooting section below.

Troubleshooting

If you experience any installation issues, refer to the following article to ensure your Android device meets the minimum system requirements:

If you experience an issue with activation, refer to the following articles:

If you are unable to resolve your issue, contact Avast Support.

Further recommendations

To learn more about Avast One, refer to the following article:

For instructions on how to use Avast One, refer to the following article:

The new Avast One for iOS is replacing both the previous Avast One app and Avast Mobile Security. As part of this change, the older apps are being removed from the Apple App Store. All new installations on iOS install the new Avast One app.

Avast One is an all-in-one security and privacy tool that helps block viruses, spyware, and other malicious threats. Additionally, it helps protect you and your data from hackers while you are online.

After purchasing a subscription, install Avast One and then activate the app.

Install Avast One

To install Avast One, follow the steps below:

  1. On your iOS device, tap the button below to open the Avast One app page in the App Store.
    Go to the App Store
  2. Tap the Download button to download and install the app. When installation is complete, tap Open.
  3. Tap Already purchased?. Alternatively, if you have not purchased a subscription yet, tap Get started, then follow the on-screen instructions to choose a plan and complete the purchase. If you purchase a subscription this way, Avast One activates automatically.
  4. The following options are available:
    • Sign in to your Account: Connect your subscription using your Avast Account credentials.
    • Restore from App Store: If you purchased a paid version of Avast One through the App Store, you can follow the on screen instructions to restore your subscription. Ensure you are signed in to the App Store with the same account that you used to purchase a paid version of Avast One.

Once Avast One is installed, for detailed activation instructions, refer to the section below.

Activate Avast One

To activate premium features in Avast One, you can sign in with an Avast Account linked to a valid subscription, enter a valid activation code, or restore your subscription through Apple App Store. This article provides instructions for all activation methods.

If you purchased an Avast multi-device subscription from a retail store or a third-party reseller (such as Amazon), sign in to your Avast Account (or create one first) and exchange the reseller code for an activation code, which adds the subscription to your account. For step-by-step instructions, refer to Activating an Avast application using a third-party reseller code.

Restore via App Store

This option only applies if you purchased your Avast Avast One subscription through the App Store.

Tap Restore from App Store.

Avast Avast One is now activated. If activation is unsuccessful, refer to the Troubleshooting section below.

Troubleshooting

If you experience any installation issues, refer to the following article to ensure your Android device meets the minimum system requirements:

If you experience an issue with activation, refer to the following articles:

If you are unable to resolve your issue, contact Avast Support.

Further recommendations

To learn more about Avast One, refer to the following article:

For instructions on how to use Avast One, refer to the following article:

  • Avast One
  • Windows, macOS, Android, and iOS


Updated on: 14/07/2026

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