How to install Norton Antivirus To install Norton on your Android device, On your Android device, launch the Play Store application. Search for Norton Security and Antivirus, and then select the Norton application from the search results. Touch Install and then OK to install the application. When the installation is complete, tap Open. Read and accept the Norton License Agreement and Terms of Use and the Norton Mobile Privacy Policy. Touch Continue. Norton Mobile Security performs initial setup and runs Live Update, Anti-Malware scan, and App Adviser scan. After the setup is complete, you must log into your Norton account to use all the Norton Mobile Security features. In the upper left corner, tap the menu icon and then tap Sign in. Enter the email address and password for your Norton account, and then tap Sign in. Make sure to use the same email address and password that you used to purchase Norton Mobile Security or your Norton product that includes Norton Mobile Security (such as Norton Security or Norton 360 MultiDevice). If you have not activated Norton Mobile Security, in your browser, go to the website mobilesecurity.norton.com. Click Register a purchase. Enter the email address and password for your Norton account, and then click Sign in. If you don't have a Norton account, click Create account. Enter your details and then click Create account. Enter the 25-character product key that you received with your purchase, and then click Verify. Norton Mobile Security activation is now complete. On your mobile device, you can view your subscription status under the 'Get Norton' tab in the Norton Mobile Security application window. If you notice any problems with the installation of Norton Mobile Security, make sure that your device has the latest version of the Google Play application and all the latest system updates installed. The installation of Norton Mobile Security is now complete. To use the Web Protection and Anti-Theft features, you must enable Device Manager and Norton Security Service.