Reinstalling the latest version of Trend Micro Security program using the Reinstall Tool

  • Solution ID:1121873
  • Last Updated:Jul. 26, 2019 5:09 AM (PST)
  • Applies to:Antivirus+ Security - 2019;Internet Security - 2019;Maximum Security - 2019;Premium Security - 2019;
  • Using the Reinstall Tool | Trend Micro Security

Learn how to reinstall the latest version of your Trend Micro Security program. This article is applicable for the following scenarios:

  • Upgrading from an old version to the latest Trend Micro Security version
  • Transferring Trend Micro Security antivirus to a new computer
  • Accidentally uninstalled Trend Micro Security
  • Lost Trend Micro Security during system restore
  • Hard drive crashed, replaced or formatted
  • Computer was replaced or switching pc
  • Operating system was reinstalled or upgraded
  • Installing without a disc
  • Reinstallation of the program


  • If you need to REINSTALL your Trend Micro Security software on your Apple Mac, refer to this Knowledge Base article for instructions:
    Upgrading your Trend Micro Security for Mac to the latest version
  • 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.

You will get better performance and protection when you install the latest version of your Trend Micro Security program. The program upgrade is free as long as you have a valid subscription. To install the latest version of your Trend Micro Security program, do the following:

Get a copy of your serial number

To know where to find your serial number, refer to this Knowledge Base article:
Finding the serial number of Trend Micro Security.

Make sure your computer meets the system requirements

To check if your computer meets the system requirements, refer to this Knowledge Base Article:
System Requirements for Trend Micro Security.

Run the Reinstall Tool

Download and run the reinstall tool according to your program version:

  1. Click the download button below:

    Serial Number Starts with an 'X'

    Maximum Security

    Serial Number Starts with a 'P'

    Internet Security

    Serial Number Starts with an 'A'

    Antivirus+ Security

    If your serial number starts with a "T", contact Best Buy's Geek Squad or your Internet Service Provider, depending on where you got the program.

  2. Double-click the reinstall tool to run it.

    Click OK when you see the prompt below:

    Downloading files needed to install Titanium

    This process will download files needed to reinstall your program.

  3. Click I accept the terms of the license agreement, then click Next.
  4. Click Install.
  5. Click OK on the Module Update window.

    You must restart the computer to make the update take effect

  6. Click OK when you see the following message:

    "Installation successful!"

    Installation successful!

  7. Click OK to restart your computer.

    Click ok to restart the computer and continue installing Trend Micro Titanium


    You must click OK on the prompt to continue the installation.

    DO NOT manually restart your computer.

Wait as the installer checks your computer
  1. After your computer restarts, wait as Trend Micro checks if your computer is compatible for installation.

    Checking the computer

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

    Choose your version

Read the Privacy and Personal Data Collection Disclosure
  1. Read Privacy and Personal Data Collection Disclosure, then click Next.

    License Agreement

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

    License Agreement

Wait as the Trend Micro program finishes installing
  1. Wait for the program to install. This may take a couple of minutes.


  2. Click Finish.

    Protection Activated

  3. After activating, you will see the main console of Trend Micro Security.
    Your protection upon installation is configured for optimum protection so you don't need to do anything.

    Trend Micro Main Console