Upgrade Trend Micro Security for Mac to its latest version to get your program up-to-date with new features and enhancements.

Uninstall the current Trend Micro program

Remove the existing version so you can install the latest version.

Download and install Antivirus for Mac

Download, then install the program compatible with the macOS version you have:

MacOS Version Recommended Installer
Antivirus for Mac version 11
HIGH SIERRA Antivirus for Mac version 10
SIERRA Antivirus for Mac version 9

Having problems?
Here are some answers you might be looking for:

There is no installer available for my macOS version.

Trend Micro Antivirus can no longer be installed on El Capitan (10.11) and below.

It says "Incompatible Sofware Found".

Remove the conflicting software. Having more than one antivirus program running at the same time can slow down your Mac and be more prone to threats.

Helper Tool is required.

Install the Helper Tool so Trend Micro can protect you properly.

It says "System Extensions Blocked".

Allow Trend Micro Network Extension to provide complete protection for your Mac.

Full Disk Access is required to protect my files.

Enable Full Disk Access so Trend Micro can scan protected files.