Enter Trend micro activation code on www.trendmicro.com/activate to download and activate Trend Micro. To activate Trend micro, make sure you already have an activation code that you’ll probably enter on the trend micro activation site. Complete Trend Micro Activation from www.trendmicro.com/activate using the product key. Enter your activation code and sign in to download its products. Make sure you accept the Trend micro license Agreement you receive on www.trendmicro/activate to register your product securely.