There are several possible root causes as this issue is happening on your end. Allow me to share ideas with this problem.
Have you installed any other applications on your computer in the past days? It is possible that this programs are conflicting with the Trend Micro Program. If you have other Antivirus programs on your computer aside from TM, I would suggest uninstalling it first then see if it will make any difference.
It is also possible that you might have used a faulty installer file. With this, try reinstalling the program from our official download center. See this link for the free download: Trend Micro Maximum Security 2018 12.0 Let us know if this helps. All the best