Install Trend Micro Internet Security How to Install Trend Micro Internet Security on your Device? 1. Start by opening up a browser on your device and type the URL www.trendmicro.com/install and click enter. 2. A webpage will open on your screen for downloading this program and you will see a few alternatives at the base like save, run and cancel. 3. An installer file will be sent to you (.exe file), double click on the program to make it run. 4. After arriving on the next screen, it will request the activation code. At this point put your Trend Micro activation code in the boxes to complete the Trend Micro setup procedure. Remember to click on ‘next’ on the installation wizard and afterward follow the instructions provided by the wizard.