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.
To see this working, head to your live site.
How to activate Trend Micro products with an existing subscription
Open Trend Micro, then click Activate Now.
Provide a computer name, then click Next.
Type your email address, then click Next.
Fill out the Account Information window, then click Next.
Check if the information is correct, then click Next and then Finish.
Regards,
Willjoe