Upgrading Trend Micro Maximum Security to the latest version

Learn how to upgrade your Maximum Security to the latest version. To be eligible for the free upgrade:

  • You must have an unexpired subscription.
  • For Windows, your serial number starts with the letter “X”.
  • For Mac, your serial number starts with the letter “X” or "M".
  • Your computer must meet the system requirements.
Note: Chrome OS is currently incompatible with the Trend Micro Software.

This article is also applicable to Trend Micro Premium Security.

BEFORE YOU PROCEED: 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.
Choose from the tabs below whether you are using a Windows PC or a Mac:

To upgrade your Trend Micro Maximum Security, do the following:

STEP 1. Make sure your computer meets the system requirements


Microsoft has formally announced Windows XP (April 8, 2014) and Windows Vista (April 11, 2017) end of support. Because Microsoft no longer fixes issues on Windows XP and Windows Vista, it has become increasingly difficult for Trend Micro to keep users safe on these operating systems. We encourage all of our users to upgrade their PCs to a more modern operating system which will provide greater stability and security.

I'm still using Windows XP, what Trend Micro Security program can I install on my computer?

You can install Trend Micro Security version 10 on your Windows XP. For more information, refer to this Knowledge Base article section:
 Windows XPWindows VistaWindows 7Windows 8
and 8.1
Windows 10
Operating System Version INCOMPATIBLE (32 or 64-bit)
SP2 or higher
(32 or 64-bit)
SP1 or higher
(32 or 64-bit)

Note: Windows RT is not supported.
(32 or 64-bit)

Windows 10 Creators Update

Note: Windows 10 S is not supported.
Processor 800 MHz
(1GHz recommended)
800 MHz
(1GHz recommended)
1GHz 1GHz
Note: These processors support SSE2 Instruction Set.
Memory 512MB
(1GB recommended)
(2GB recommended)
(2GB recommended)
Free Disk Space 1.3 GB
(1.5 GB recommended)
Web Browser
  • Microsoft Internet Explorer 9.0
  • Mozilla Firefox latest version
  • Google Chrome latest version
  • Microsoft Internet Explorer 9.0, 10.0 and 11.0
  • Mozilla Firefox latest version
  • Google Chrome latest version
  • Microsoft Internet Explorer 10.0 and 11.0
  • Mozilla Firefox latest version
  • Google Chrome latest version
  • Microsoft Internet Explorer 11.0
  • Microsoft Edge latest version
  • Mozilla Firefox latest version
  • Google Chrome latest version
Internet Connection Broadband or equivalent high speed connection is highly recommended.
  • Desktop - High-colour display with 1280 x 720 pixel resolution or above
  • Windows Store - 1064 x 768 pixel resolution or above
  • Snap Apps - 1366 x 768 pixel resolution or above
PDF Reader Any

STEP 2. Download
  1. Download the installer file to begin the installation.



  2. Double-click the TTi_11.0_HE_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.

STEP 3. 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.

STEP 4. Serial Number
  1. Type your serial number, then click Next.
    Enter Serial Number

STEP 5. License Agreement
  1. Read the License Agreement, then click Agree and Install.
    Read the License Agreement

STEP 6. Installation
  1. Wait for the program to install. This may take a couple of minutes.
    Installing Trend Micro Maximum Security

STEP 7. Confirmation
  1. Click Finish.
    You will see the main console of your Trend Micro Security program.

To upgrade your Trend Micro 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 10.12 “Sierra" (10.12 or higher)
  • 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 credentials when 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.
    You can click Disagree if you do not agree with the terms of the License Agreement.
    However, this will automatically terminate the installation process.
    Agree on License Agreement
  9. Type your serial number on the field provided, then click Continue.
    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 Antivirus, then click Continue.
    Enter serial number
  10. Click Install .
  11. Type your administrator password, then click Install Software.
    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.
    Type administrator password
  12. Provide your email address, then click Continue.
    Type email address
  13. Click Close after the installation is done.
    Installation successful
Applies To: Maximum Security - 2015;Maximum Security - 2016;Maximum Security - 2017;Premium Security - 2015;Premium Security - 2016, Premium Security - 2017;Titanium Maximum Security - All;Titanium Premium Security - All;

Last Updated: Jul. 14, 2017 1:21 AM (PST)
Solution ID: 1059036