on 4/1/17 I renewed my Trend Internet Security.
Two other machines are also connected.
On 16/1/17 my computer died and I bought a new one.
Could you please advise how i can reactivate security to cover this new machine?
It should be pretty simple Ian - as long as you have your current serial number. Just go to the Trend Micro products page, find the level of security you've had, and begin the download to the new device. At that point you should be asked for that number and that's it.
Congrats on getting a new machine! We've checked your license information. Since your 3 seats of Internet Security are all taken, you cannot install on the 4th PC unless you disable one of registration of your current PC. If want to transfer the license to another PC, here's an online doc to help you manage the transfer: Transferring a license from one device or computer to another
Please let us know if the solution works for you. If you're still encountering problems, please provide a description or picture of the message, we'll be glad to assist you. Thank you!