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Activating an Avast One subscription

Before following the activation steps in this article, ensure the latest version of Avast One is installed on your device. For instructions, refer to the following article:

To activate the premium features in Avast One, you need to sign in to the application with an Avast Account that contains a valid Avast One subscription. The instructions in this article explain how to sign in to Avast One with an Avast Account.

It is not possible to activate Avast One using an activation code.

Activate via Avast Account

  1. Double-click the Avast One icon on your desktop to open the application.
  2. Click Account in the left panel on the main Avast One screen.
  3. Select Sign in. Google Chrome opens.
    If you don't yet have an Avast Account, click Create account to activate Avast One by creating a new Avast Account with the email address that you provided during purchase.
  4. Follow the relevant step below (option A or option B) in Google Chrome:
    1. Check that the listed Avast Account is the one that contains your Avast One subscription, then click Yes, continue. Alternatively, click Sign in as someone else.
    2. Enter the credentials for the Avast Account that contains your Avast One subscription, then click Continue.
  5. When prompted by Google Chrome to re-open Avast Antivirus, click Open Avast Antivirus.
  1. Double-click the Avast One icon on your desktop to open the application.
  2. Click Account in the left panel on the main Avast One screen.
  3. Select Sign in. Firefox opens.
    If you don't yet have an Avast Account, click Create account to activate Avast One by creating a new Avast Account with the email address that you provided during purchase.
  4. Follow the relevant step below (option A or option B) in Firefox:
    1. Check that the listed Avast Account is the one that contains your Avast One subscription, then click Yes, continue. Alternatively, click Sign in as someone else.
    2. Enter the credentials for the Avast Account that contains your Avast One subscription, then click Continue.
  5. When prompted by Firefox to re-open Avast Antivirus, select Choose Application.
  6. Ensure Avast Antivirus is selected, then click Open Link.
  1. Double-click the Avast One icon on your desktop to open the application.
  2. Click Account in the left panel on the main Avast One screen.
  3. Select Sign in. Microsoft Edge opens.
    If you don't yet have an Avast Account, click Create account to activate Avast One by creating a new Avast Account with the email address that you provided during purchase.
  4. Follow the relevant step below (option A or option B) in Microsoft Edge:
    1. Check that the listed Avast Account is the one that contains your Avast One subscription, then click Yes, continue. Alternatively, click Sign in as someone else.
    2. Enter the credentials for the Avast Account that contains your Avast One subscription, then click Continue.
  5. When prompted by Microsoft Edge to re-open Avast Antivirus, click Open.
  1. Double-click the Avast One icon on your desktop to open the application.
  2. Click Account in the left panel on the main Avast One screen.
  3. Select Sign in. Avast Secure Browser opens.
    If you don't yet have an Avast Account, click Create account to activate Avast One by creating a new Avast Account with the email address that you provided during purchase.
  4. Follow the relevant step below (option A or option B) in Avast Secure Browser:
    1. Check that the listed Avast Account is the one that contains your Avast One subscription, then click Yes, continue. Alternatively, click Sign in as someone else.
    2. Enter the credentials for the Avast Account that contains your Avast One subscription, then click Continue.
  5. When prompted by Avast Secure Browser to re-open Avast Antivirus, click Open Avast Antivirus.

Your Avast One subscription is now active. If activation is unsuccessful, refer to the Activate via sign-in key section below.

The expiration date of your subscription appears via Account ▸ Subscription or in your Avast Account. You can activate your subscription on the number of devices you specified when making the purchase.


Activate via sign-in key

If activation via Avast Account fails, you can activate Avast One using the sign-in key from your web browser. To use this alternative activation method, follow the steps below:

  1. Double-click the Avast One icon on your desktop to open the application.
  2. Click Account in the left panel on the main Avast One screen.
  3. Select Sign in. Your default web browser opens.
  4. Follow the relevant step below (option A or option B) in your default web browser:
    1. Check that the listed Avast Account is the one that contains your Avast One subscription, then click Yes, continue. Alternatively, click Sign in as someone else.
    2. Enter the credentials for the Avast Account that contains your Avast One subscription, then click Continue.
  5. Click Get a sign-in key instead.
  6. Click Copy to clipboard.
  7. Go to Avast One, and click enter the sign-in key from your browser.
  8. Click in the text box, then press the Ctrl key and the V key on your keyboard simultaneously to paste the sign-in key. Click Continue.

Your Avast One subscription is now active. If activation is unsuccessful, refer to the Still need help? section below.

The expiration date of your subscription appears via Account ▸ Subscription or in your Avast Account. You can activate your subscription on the number of devices you specified when making the purchase.

To activate the premium features in Avast One, you need to sign in to the application with an Avast Account that contains a valid Avast One subscription. The instructions in this article explain how to sign in to Avast One with an Avast Account.

It is not possible to activate Avast One using an activation code.

Activate via Avast Account

  1. Click Go ▸ Applications in the Apple menu bar, then double-click the Avast One icon to open the application.
  2. Click Account in the left panel on the main Avast One screen.
  3. Select Sign in. Safari opens.
  4. Follow the relevant step below (option A or option B) in Safari:
    1. Check that the listed Avast Account is the one that contains your Avast One subscription, then click Yes, continue. Alternatively, click Sign in as someone else or Create new account.
    2. Enter the credentials for the Avast Account that contains your Avast One subscription, then click Continue. Alternatively, click Create an account.
  5. When prompted by Safari to re-open Avast One, click Allow.
  1. Click Go ▸ Applications in the Apple menu bar, then double-click the Avast One icon to open the application.
  2. Click Account in the left panel on the main Avast One screen.
  3. Select Sign in. Google Chrome opens.
  4. Follow the relevant step below (option A or option B) in Google Chrome:
    1. Check that the listed Avast Account is the one that contains your Avast One subscription, then click Yes, continue. Alternatively, click Sign in as someone else or Create new account.
    2. Enter the credentials for the Avast Account that contains your Avast One subscription, then click Continue. Alternatively, click Create an account.
  5. When prompted by Google Chrome to re-open Avast One, click Open Avast One.
  1. Click Go ▸ Applications in the Apple menu bar, then double-click the Avast One icon to open the application.
  2. Click Account in the left panel on the main Avast One screen.
  3. Select Sign in. Firefox opens.
  4. Follow the relevant step below (option A or option B) in Firefox:
    1. Check that the listed Avast Account is the one that contains your Avast One subscription, then click Yes, continue. Alternatively, click Sign in as someone else or Create new account.
    2. Enter the credentials for the Avast Account that contains your Avast One subscription, then click Continue. Alternatively, click Create an account.
  5. When prompted by Firefox to re-open Avast One, click Choose Application.
  6. Ensure Avast One is selected, then click Open Link.
  1. Click Go ▸ Applications in the Apple menu bar, then double-click the Avast One icon to open the application.
  2. Click Account in the left panel on the main Avast One screen.
  3. Select Sign in. Avast Secure Browser opens.
  4. Follow the relevant step below (option A or option B) in Avast Secure Browser:
    1. Check that the listed Avast Account is the one that contains your Avast One subscription, then click Yes, continue. Alternatively, click Sign in as someone else or Create new account.
    2. Enter the credentials for the Avast Account that contains your Avast One subscription, then click Continue. Alternatively, click Create an account.
  5. When prompted by Avast Secure Browser to re-open Avast One, click Open Avast One.

Your Avast One subscription is now active. If activation is unsuccessful, refer to the Still need help? section below.

The expiration date of your subscription appears via Account ▸ Subscription or in your Avast Account. You can activate your subscription on the number of devices you specified when making the purchase.

To activate the premium features in Avast One, refer to the instructions in the relevant section below:

Activate via Avast Account

  1. Tap the Avast One icon on the Home screen of your device. The app opens.
  2. Tap Profile in the bottom panel.
  3. Tap Sign in.
  4. Enter your Avast Account credentials, then select Continue.
    If you don't yet have an Avast Account, tap Create account to activate Avast One by creating a new Avast Account with the email address that you provided during purchase.

Your Avast One subscription is now active. If activation is unsuccessful, refer to the Still need help? section below.

The expiration date of your subscription appears via Profile ▸ Subscription or in your Avast Account. You can activate your subscription on the number of devices you specified when making the purchase.

Restore via Google Play

Avast One subscriptions purchased via Google Play Store are activated automatically on the Android device you used to make the purchase. The instructions below are useful if you change or reset your device, or automatic activation via Google Play Store is unsuccessful.

To restore your Avast One subscription via Google Play Store:

  1. Ensure you are signed in to Google Play Store with the same Google Account that you used to purchase Avast One. For instructions on how to verify this, refer to the following article:
  2. Tap the Avast One icon on the Home screen of your device. The app opens.
  3. Tap Profile in the bottom panel.
  4. Tap Add or update subscription ▸ Restore from Google Play.

The app automatically retrieves and activates your Avast One subscription from Google Play Store.

If activation is unsuccessful, refer to the following article:

To activate the premium features in Avast One, refer to the instructions in the relevant section below:

Activate via Avast Account

  1. Tap the Avast One icon on the Home screen of your device. The app opens.
  2. Tap Profile in the bottom panel.
  3. Tap Sign in.
    If you don't yet have an Avast Account, tap Create account.
  4. Enter your Avast Account credentials, then tap Confirm.

Your Avast One subscription is now active. If activation is unsuccessful, refer to the Still need help? section below.

The expiration date of your subscription appears via Profile ▸ Subscription or in your Avast Account. You can activate your subscription on the number of devices you specified when making the purchase.

Restore via the App Store

Avast One subscriptions purchased via the App Store are activated automatically on the iOS device you used to make the purchase. The instructions below are useful if you change or reset your device, or automatic activation via the App Store is unsuccessful.

To restore your Avast One subscription via the App Store:

  1. Ensure you are signed in to the App Store with the same Apple ID that you used to purchase Avast One. For instructions on how to verify this, refer to the following article:
  2. Tap the Avast One icon on the Home screen of your device. The app opens.
  3. Tap Profile in the bottom panel.
  4. Tap Buy or restore a subscription.
  5. Select Restore from App Store.

The app automatically retrieves and activates your Avast One subscription from the App Store.

If activation is unsuccessful, refer to the following article:

Still need help?

The information below explains how to resolve some of the most common activation issues:

If the issue persists, 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 22.x for Windows
  • Avast One 22.x for Mac
  • Avast One 2.x for Android
  • Avast One 2.x for iOS
  • Microsoft Windows 11 Home / Pro / Enterprise / Education
  • 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

  • Apple macOS 12.x (Monterey)
  • Apple macOS 11.x (Big Sur)
  • Apple macOS 10.15.x (Catalina)
  • Apple macOS 10.14.x (Mojave)
  • Apple macOS 10.13.x (High Sierra)

  • Google Android 6.0 (Marshmallow, API 23) or later

  • Apple iOS 13.0 or later

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