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This article shows how to upgrade your Trend Micro Security for Mac to the latest version.


Uninstall the current Trend Micro program for Mac
  1. Click the button below to download the Diagnostic Toolkit .zip file:

    Download Trend Micro Diagnostic Toolkit.zip

  2. Double-click the Trend Micro Diagnostic Toolkit.zip to unzip or extract the file.
  3. Once unzipped, double-click the Trend Micro Diagnostic Toolkit.app to open the file.
  4. Click Uninstall to proceed.

    Uninstall from DTK

  5. Copy the serial number, then tick the box I copied my serial number. Click Uninstall.

    I copied my serial number

  6. Enter your Mac credentials when asked, then click OK.

    Enter Mac Credentials

  7. Wait until the uninstallation is complete. Click OK once the message below appears.

    Finish Uninstall

Make sure your Mac meets the system requirements

Check the version of Trend Micro Antivirus compatible with your macOS:


Antivirus for Mac 2020
  • Mac OS X®️ version 10.15 "Catalina" (10.15 or higher)
  • Mac OS X®️ version 10.14 "Mojave" (10.14 or higher)
  • Mac OS X® version 10.13 "High Sierra" (10.13 or higher)
Antivirus for Mac 2019
  • Mac OS X®️ version 10.14 "Mojave" (10.14 or higher)
  • Mac OS X® version 10.13 "High Sierra" (10.13 or higher)<
  • Mac OS X® version 10.12 "Sierra" (10.12 or higher)<
Antivirus for Mac 2018
  • Mac OS X® version 10.13 “High Sierra" (10.13 or higher)
  • Mac OS X® version 10.12 “Sierra" (10.12 or higher)
  • Mac OS X® version 10.11 “El Capitan" (10.11 or higher)
Uninstall Conflicting Software

To check and remove conflicting programs, refer to this Knowledge Base article:
Programs to remove before installing Antivirus for Mac.

Download and install Antivirus for Mac

Click on the download button below compatible with your Mac computer:


Antivirus for Mac 2020

Download Installer


Antivirus for Mac 2019

Download Installer


Antivirus for Mac 2018
Download Installer

For installation instructions, refer to this Knowledge Base article:Installing Antivirus for Mac.

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How to upgrade Antivirus for Mac to the latest version

This article shows how to upgrade your Trend Micro Security for Mac to the latest version.


Uninstall the current Trend Micro program for Mac
  1. Click the button below to download the Diagnostic Toolkit .zip file:

    Download Trend Micro Diagnostic Toolkit.zip

  2. Double-click the Trend Micro Diagnostic Toolkit.zip to unzip or extract the file.
  3. Once unzipped, double-click the Trend Micro Diagnostic Toolkit.app to open the file.
  4. Click Uninstall to proceed.

    Uninstall from DTK

  5. Copy the serial number, then tick the box I copied my serial number. Click Uninstall.

    I copied my serial number

  6. Enter your Mac credentials when asked, then click OK.

    Enter Mac Credentials

  7. Wait until the uninstallation is complete. Click OK once the message below appears.

    Finish Uninstall

Make sure your Mac meets the system requirements

Check the version of Trend Micro Antivirus compatible with your macOS:


Antivirus for Mac 2020
  • Mac OS X®️ version 10.15 "Catalina" (10.15 or higher)
  • Mac OS X®️ version 10.14 "Mojave" (10.14 or higher)
  • Mac OS X® version 10.13 "High Sierra" (10.13 or higher)
Antivirus for Mac 2019
  • Mac OS X®️ version 10.14 "Mojave" (10.14 or higher)
  • Mac OS X® version 10.13 "High Sierra" (10.13 or higher)<
  • Mac OS X® version 10.12 "Sierra" (10.12 or higher)<
Antivirus for Mac 2018
  • Mac OS X® version 10.13 “High Sierra" (10.13 or higher)
  • Mac OS X® version 10.12 “Sierra" (10.12 or higher)
  • Mac OS X® version 10.11 “El Capitan" (10.11 or higher)
Uninstall Conflicting Software

To check and remove conflicting programs, refer to this Knowledge Base article:
Programs to remove before installing Antivirus for Mac.

Download and install Antivirus for Mac

Click on the download button below compatible with your Mac computer:


Antivirus for Mac 2020

Download Installer


Antivirus for Mac 2019

Download Installer


Antivirus for Mac 2018
Download Installer

For installation instructions, refer to this Knowledge Base article:Installing Antivirus for Mac.


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