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Upgrading Trend Micro Internet Security to the latest version

Learn how to upgrade your Trend Micro Internet Security to the latest version. To be eligible for the free upgrade:
  • You should have an unexpired subscription. 
  • For Windows, your serial number starts with the letter “P”.
  • For Mac, your serial number starts with the letter “X” or "M".


If your serial number starts with "T", contact Best Buy or your Internet Service Provider, depending on where you got the product.


We recommend that you print out this document or bookmark this page before proceeding because you will be asked to restart your computer during the procedure.


To upgrade your Internet Security, do the following:


1. Download
  1. Download the installer file to begin the installation.



  2. Double-click the TTi_11.0_MR_Full.exe to run it.
    Click Yes when the User Account Control window appears.
  3. Wait for the installer to extract the files needed for the installation.

2. System Check
  1. Click Yes when asked to remove the old program version.
    Ready to remove old version


  2. Click Restart Now when prompted to restart your computer.
    Restart Required


    After restarting, the installation will resume and will prompt for your serial number.


3. Serial Number
  1. Type your serial number, then click Next.
    Enter Serial Number


4. License Agreement
  1. Read the License Agreement, then click Agree and Install.
    Read the License Agreement


5. Installation
  1. Wait for the program to install. This may take a couple of minutes.
    Installing Trend Micro Internet Security


6. Confirmation
  1. Click Finish.
    You will see the main console of your Trend Micro Security program.


We recommend that you print out this document or bookmark this page before proceeding because you will be asked to restart your computer during the procedure.


To upgrade your Internet Security for Mac, do the following:


STEP 1: Take note of your serial number
To find your serial number, do the following:


  1. Click the Trend Micro icon on the upper right side of the menu bar.
  2. Click Open Trend Micro Internet Security on the list to open the Trend Micro program.
    Open Trend Micro Internet Security


  3. Click Subscription Expires at the lower right corner of the Trend Micro main console.
    Click Subscription Expires


    The Subscription Information window will appear with your program information and Serial Number.
    Subscription Information



STEP 2: Make sure your Mac meets the system requirements
Check the table below to know if your Mac meets the recommended system requirements to install Trend Micro Antivirus for Mac:
  • Intel® Core™-based Apple® Macintosh® computer
  • 2GB memory
  • 1.5GB of available hard disk space
Operating System
  • Mac OS X® version 10.11 “El Capitan" (10.11 or higher)
  • Mac OS X® version 10.10 "Yosemite" (10.10 or higher)
Supported Web Browsers
  • Apple® Safari® 8.0 or higher
  • Mozilla® Firefox® (The newest version and the most recent previous version)
  • Google Chrome™ (The newest version and the most recent previous version)
Internet Connection
Antivirus for Mac needs an Internet connection for activating online, checking the expiration date, downloading updates (including program and pattern files) from Trend Micro, obtaining information about malicious software, or browsing pages on the Trend Micro website.
If you have a dial-up or other connection to the Internet that charges fees per connection, by the amount of time connected or for the amount of data downloaded, make sure your router or connection software does not automatically start a connection to support the features listed above to avoid extra connection fees. Follow your router's instructions to edit your router settings if necessary.

STEP 3: Uninstall your old Trend Micro program (2016 or older version)
To uninstall your Trend micro program, do the following:


  1. Click Go > Application located in the upper-left of the Desktop.


  2. Select Trend Micro.
    Trend Micro


  3. Select Uninstall Trend Micro Internet Security.
    Uninstall Trend Micro


  4. Click Uninstall.


  5. Enter your Mac credential if necessary.


STEP 4: Download and install Antivirus for Mac
For installation instructions, you can watch the video tutorial or follow the steps below:


  1. Download the disk image (.DMG) or installer file, then save it to your desktop.



  2. Open the Antivirus for Mac installer.
  3. Click Install Trend Micro Antivirus.


  4. Click Open on the security warning to continue the installation.
  5. Click Continue.
    Installer Prompt


  6. Click Continue on the Welcome screen.
    Welcome screen


  7. Read the License Agreement, then click Continue.
    License Agreement


  8. Click Agree when prompted to accept the License Agreement.
    Agree on License Agreement


    Note: You can click Disagree if you do not agree with the terms of the License Agreement but this will automatically terminate the installation process.

  9. Type your serial number on the field provided, then click Continue.
    Enter serial number


    Note: You can find the serial number from the CD sleeve or Order Confirmation email. If you want to install the trial version, select Start a free trial of Trend Micro Internet Security and then click Continue.

  10. Click Install .


  11. Type your administrator password, then click Install Software.
    Type administrator password


    Note: The administrator password is created when you first set up your Mac operating system. Wait while the Trend Micro components are installed onto your Mac.

  12. Provide your email address, then click Continue.
    Type email address


  13. Click Close after the installation is done.
    Installation successful


Video Tutorial

Applies To: Antivirus for Mac - 2015, Antivirus for Mac - 2016, Antivirus for Mac - 2017;Internet Security - 2015, Internet Security - 2016, Internet Security - 2017;Titanium Internet Security - All;

Last Updated: Oct. 06, 2016 12:29 AM (PST)
Solution ID: 1058977