Reinstalling the latest version of Trend Micro Security program

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
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:

Download and reinstall Trend Micro Security
To download and reinstall your Trend Micro Security program, follow the steps below:
  1. Get a copy of your serial number.
    For instructions on where to find it, refer to this Knowledge Base article:
    Finding the serial number of Trend Micro Security
  2. Uninstall your current Trend Micro Security program.
    For instructions, refer to this Knowledge Base article:
    Uninstalling Trend Micro Security and older programs using the Diagnostic Toolkit
  3. Check the first few letters of your serial number to know which program you need to download and install.
  4. Compare it with the programs below, then click the product that matches your serial number:
    For products purchased from retail stores or Trend Micro website:
    ProgramSerial NumberExample
    Maximum Security Serial numbers starting with “X” XFFF-0012-3456-7890-1234
    Internet Security Serial numbers starting with “P” PFFF-0012-3456-7890-1234
    AntiVirus+ Security Serial numbers starting with “A” AFFF-0012-3456-7890-1234
    Antivirus for Mac Serial numbers starting with “M” MFFF-0012-3456-7890-1234
    For products purchased at Best Buy (US only):
    ProgramSerial NumberExample
    Titanium Internet Security for Best Buy Serial numbers starting with “TO” TOFF-0012-3456-7890-1234
    Titanium AntiVirus+ for Best Buy Serial numbers starting with “TA” TAFF-0012-3456-7890-1234
    Note: If your serial number starts with "TRN", contact Best Buy's Geek Squad.
Video Tutorial

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

Last Updated: Jul. 11, 2017 4:53 AM (PST)
Solution ID: 1058995