Here's how to install Avast Ultimate (Multi-Device)

Includes Premium Security, Cleanup Premium, SecureLine VPN, and AntiTrack as a bundle for up to 10 devices.

  1. Click the button below to start downloading the installation file. Download Avast Premium Security
  2. Once the download is finished, open the avast_premium_security_setup_online.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.
    See detailed installation instructions
  4. Double-click the Avast Premium Security icon on your desktop to open the application, then go to Menu, select My Subscriptions, and choose Enter activation code.
  5. Double-click the Avast Premium Security icon on your desktop to open the application, then go to Menu and select My Subscriptions.
  6. Click the text box below to copy your activation code, paste it directly into the application by pressing the Ctrl and V keys simultaneously, then click Enter.
    See detailed activation instructions
  7. Type the activation code you received with the product into the text box, and click Enter (if asked, enter your name, email, and postal code).
    See detailed activation instructions
  8. On the My Subscriptions screen, ensure that all products for the recently activated subscription are listed as Active under Subscriptions on this PC. If any products included in this subscription appear under Other available subscriptions, click Activate & install next to the missing product, and wait until the installation is complete.
  9. That's it! Don't forget about installation on other devices.
  1. Click the button below to start downloading the installation file. Download Avast Security
  2. Once the download is finished, open the avast_security_online.dmg file (by default, downloaded files are saved to your Downloads folder).
  3. Double-click Install Avast Security and follow the on-screen instructions to complete the installation process.
    See detailed installation instructions Note: If prompted, click Open system preferences to allow required permissions.
    See detailed installation instructions
  4. In your Applications folder, double-click the Avast Security icon to open the application, then go to Menu and select Activate paid featuresMy Subscriptions.
  5. Click the text box below to copy your activation code, paste it directly into the application, then click Activate.
    See detailed activation instructions
  6. Type the activation code you received with the product into the text box, and click Activate (if asked, enter your name, email, and postal code).
    See detailed activation instructions
  7. When prompted, select See my apps (if you selected Not now, go to Menu and select My Subscriptions).
  8. On the list under Subscriptions on this Mac, click Install next to each product for the recently activated subscription, and wait until the installation is complete (if asked for system permissions, enter your Mac account credentials to continue).
  9. That's it! Don't forget about installation on other devices.

Install Avast Mobile Security Premium

  1. Tap the button below to open the Avast Mobile Security page in Google Play Store. Go to Google Play Store
  2. Tap Install to download and install the app.
    See detailed installation instructions
  3. On your Home screen, tap the Avast Mobile Security icon to open the app, select Scan Now, then choose Get complete protection (if you switched to a free version with ads, tap Upgrade in the top-right corner of the screen).
  4. Tap the menu icon in the top-right corner of the screen, select Already purchased?, then choose Redeem an activation code.
  5. Tap the text box below to copy your activation code, paste it directly into the app, then tap Use this code.
    See detailed activation instructions
  6. Type the activation code you received with the product into the text box, and tap Use this code (if asked, enter your name, email, and postal code).
    See detailed activation instructions
  7. To open the app, tap the Avast Mobile Security icon on your Home screen.

Install Avast Cleanup Premium

  1. Tap the button below to open the Avast Cleanup page in Google Play Store. Go to Google Play Store
  2. Tap Install to download and install the app.
    See detailed installation instructions
  3. On your Home screen, tap the Avast Cleanup icon to open the app, and select Upgrade Now (if you switched to a free version with ads, tap Upgrade in the top-right corner of the screen).
  4. Tap the menu icon in the top-right corner of the screen, and select Enter activation code.
  5. Tap the text box below to copy your activation code, paste it directly into the app, then tap Confirm.
    See detailed activation instructions
  6. Type the activation code you received with the product into the text box, and tap Confirm (if asked, enter your name, email, and postal code).
    See detailed activation instructions
  7. To open the app, tap the Avast Cleanup icon on your Home screen.

Install Avast SecureLine VPN

  1. Tap the button below to open the Avast SecureLine VPN page in Google Play Store. Go to Google Play Store
  2. Tap Install to download and install the app.
    See detailed installation instructions
  3. On your Home screen, tap the Avast SecureLine icon to open the app, tap the menu icon in the top-right corner of the screen, and select Already purchased?.
  4. Select Enter activation code.
  5. Tap the text box below to copy your activation code, paste it directly into the app, then tap Activate.
    See detailed activation instructions
  6. Type the activation code you received with the product into the text box, and tap Activate (if asked, enter your name, email, and postal code).
    See detailed activation instructions
  7. To open the app, tap the Avast SecureLine icon on your Home screen.

Install Avast AntiTrack

  1. Tap the button below to open the Avast AntiTrack page in Google Play Store. Go to Google Play Store
  2. Tap Install to download and install the app.
    See detailed installation instructions
  3. On your Home screen, tap the Avast AntiTrack icon to open the app, and select View subscriptions.
  4. Select Already purchased?.
  5. Tap the text box below to copy your activation code, paste it directly into the app, then tap Activate.
    See detailed activation instructions
  6. Type the activation code you received with the product into the text box, and tap Activate (if asked, enter your name, email, and postal code).
    See detailed activation instructions
  7. To open the app, tap the Avast AntiTrack icon on your Home screen.
  1. That's it! Don't forget about installation on other devices.

Install Avast Mobile Security Premium

  1. Tap the button below to open the Avast Mobile Security page in App Store. Go to App Store
  2. Tap Get (or the cloud icon) to download and install the app.
    See detailed installation instructions
  3. On your Home screen, tap the Avast Security icon to open the app, select Not now, and tap Upgrade in the top-right corner of the screen.
  4. Select Already purchased?, then choose Enter Avast subscription code.
  5. Tap the text box below to copy your activation code, paste it directly into the app, then tap OK.
    See detailed activation instructions
  6. Type the activation code you received with the product into the text box, and tap OK (if asked, enter your name, email, and postal code).
    See detailed activation instructions
  7. To open the app, tap the Avast Security icon on your Home screen.

Install Avast SecureLine VPN

  1. Tap the button below to open the Avast SecureLine VPN page in App Store. Go to App Store
  2. Tap Get (or the cloud icon) to download and install the app.
    See detailed installation instructions
  3. On your Home screen, tap the SecureLine icon to open the app, and select Already purchased?.
  4. Select Enter activation code.
  5. Tap the text box below to copy your activation code, paste it directly into the app, then tap Continue.
    See detailed activation instructions
  6. Type the activation code you received with the product into the text box, and tap Continue (if asked, enter your name, email, and postal code).
    See detailed activation instructions
  7. To open the app, tap the SecureLine icon on your Home screen.
  1. That's it! Don't forget about installation on other devices.