1 Step 1: Go to the Play Store, search for 'Norton' and press 'Install'. 2 Step 2: After installation, press 'Open'. 3 Step 3: Press ‘Sign in’ and sign in. 4 Step 4: Press ‘Security’. 5 Step 5: Press ‘App Security’. 6 Step 6: Press ‘Set up’. 7 Step 7: Go to ‘Installed Services’. Step 8: Select 'Norton 360 service' and enable it. You can then close the app, Norton is now installed.