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1 Message


20 Points

Saturday, April 25th, 2020 3:23 PM


MacOS/Catalina/v10.15.4 -Slow/No Scans; Extensions not compatible

Auto scans haven't been functional for quite some time. Concerning that Trend isn't keeping up with basics... raises concerns about level of protection they provide for their expensive (and poorly suppported) service. Spending lots of time doing manual scans; think I'll spend time looking for new product.

Brand User

Trend Security Expert


766 Messages


15.4K Points

3 years ago

Hi, N M!


Welcome to Trend Micro Home Users Community.


To help you troubleshoot the problem, may we know how were you able to determine that automatic scans aren't functional?


Please make sure to always have the latest versions of the program to keep it working. You may check the link below to know how to perform a manual update.


How to perform manual update (Antivirus for Mac)


For the "Legacy System Extension" notification, this message appears to MacOS version 10.15.4. Trend Micro will release a version of Antivirus for Mac that is compatible with the next version of macOS before it is released to ensure that you have continuous protection for your Mac. You may check the statement of Trend Micro in the link below to know more about it.


Popup: Legacy System Extension (Antivirus for Mac)


- Kath

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