“Invalid Serial Number” error message appears when activating Trend Micro Security program

  • Solution ID: 1054753
  • Last Updated: Dec. 06, 2017 5:10 AM (PST)
  • Applies to: Antivirus for Mac - 2015, Antivirus for Mac - 2016, Antivirus for Mac - 2017;Antivirus for Mac - 2018;Antivirus+ Security - 2015;2016;2017;2018;Internet Security - 2015;Internet Security - 2016;Internet Security - 2017;Internet Security - 2018;Maximum Security - 2015;Maximum Security - 2016;Maximum Security - 2017;Maximum Security - 2018;Premium Security - 2015;Premium Security - 2016;Premium Security - 2017;Premium Security - 2018;
  • "Invalid Serial Number" | Error Message | Trend Micro Security

You receive the following error message when trying to register or activate your Trend Micro Security:

Invalid Serial Number

"Invalid Serial Number
You have not provided a valid serial number. Please try again."

"You have entered an invalid serial number.
Without a valid serial number, Trend Micro Security cannot protect you. Please try again."

 

This issue can happen in any of the following scenario:

  • You entered the incorrect serial number.
  • You downloaded a version of the Trend Micro program that is incompatible with your serial number.
  • The downloaded installer of the Trend Micro program is incomplete.

To resolve this issue, do either of the following:

OPTION 1: Retype your Serial Number
OPTION 2: Download the appropriate installer file
OPTION 3: Check Installer file size before running the installer

 

Click your region below to purchase the Premium Installation Service and have an expert get your Trend Micro Security product up and running.