Avast Premium Multi-Device

Step by Step Guide:

Windows:

  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 and select My Subscriptions.
  5. Select Enter a valid activation code, 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

Mac:

  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).02
  3. Double-click Avast Security and follow the on-screen instructions to complete the installation process.
    See detailed installation instructions
  4. In your Applications folder, double-click the Avast icon to open the application, then go to ☰ Menu and select Activate paid features.
  5. 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

Android:

  1. Tap the button below to open the product page in Google Play Store.GO TO GOOGLE PLAY STORE
  2. Tap Install to download and install the app.
  3. On your Home screen, tap the Avast Mobile Security 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 voucher code.
  5. 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

iOS:

  1. Tap the button below to open the product page in App Store.GO TO APP STORE
  2. Tap Get (or the cloud icon) to download and install the app.
  3. On your Home screen, tap the Security icon to open the app, and select Not now.
  4. Tap Upgrade in the top-right corner of the screen, and select Already purchased?.
  5. Select Enter Avast subscription code, 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

Please feel free to contact us or Avast! Online Support for any further assistance.

https://www.avast.com/en-gb/contacts

OR

Call 24×7 Avast! UK Support: 0800-048-8941

Mustech Customer Service