Hello
Please check the operating system on your Mac. To do this, click the Apple logo in the upper-left corner of your screen, then select About This Mac.
Verify whether your macOS version is one of the unsupported versions listed below:
Monterey (12.0), Big Sur (11.0), Catalina (10.15), Mojave (10.14), High Sierra (10.13), Sierra (10.12), or earlier.
If your Mac is running any of these versions, it means your operating system does not meet the system requirements to update Trend Micro Antivirus for Mac.
If your Mac is running an unsupported version, please upgrade to one of the supported macOS versions below:
- macOS Tahoe (26.0)
- macOS Sequoia (15.0)
- macOS Sonoma (14.0)
- macOS Ventura (13.0)