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

Support
Solution ID Last Updated
1054753 Date : 2014/09/16 Time:5:22 PM , (PST)


Product/Version Platform
Titanium AntiVirus + - 2011, 2012, 2013;2014;Titanium Internet Security - 2011, Titanium Internet Security - 2012, Titanium Internet Security - 2013;Titanium Internet Security - 2014;Titanium Maximum Security - 2011, Titanium Maximum Security - 2012, Titanium Maximum Security - 2013;Titanium Maximum Security - 2014;Trend Micro Antivirus+ Security - 2015;Trend Micro Internet Security - 2015;Trend Micro Maximum Security - 2015;Trend Micro Premium Security - 2015;Trend Micro Smart Surfing for Mac - 1.6;
Macintosh - Leopard, Lion, Mountain Lion, Snow Leopard, Windows - 7 32-bit, Windows - 8 32-bit, Windows - 8 64-bit, Windows - Vista 32-bit, Windows - Vista 64-bit, Windows - XP Home, Windows - 8.1 32-bit, Windows - 8.1 64-bit

Problem Description

You get the followng error message when trying to register or activate your Trend Micro program:
"Invalid Serial Number"

Solution

To solve this issue, click on any of the following causes:
[ Expand All ]

 

Your serial number is not appropriate for the Trend Micro program you are using

The error message will appear if you use your serial number to activate a wrong Trend Micro program. Serial numbers follow a different format for each program depending on how you acquired the serial number. Check the format below:
For programs bundled with your Dell computer
Serial NumberDownload and install this program:
Serial Numbers starting with "D"
Example: DLEF-0012-3456-7890-1234
Trend Micro Titanium Internet Security for Dell
Serial Numbers starting with "X"
Example: XFFF-0012-3456-7890-1234
Trend Micro Titanium Maximum Security for Dell 2012
For programs purchased from Best Buy (US)
Serial NumberDownload and install this program:
Serial Numbers starting with "TO"
Example: TOFF-0012-3456-7890-1234
Titanium Internet Security
Serial Numbers starting with TA
Example: TCEF-0012-3456-7890-1234
Titanium Internet Security for Mac
For programs purchased from QVC
Serial NumberDownload and install this program:
Serial Numbers starting with "A"
Example: ACMZ-0012-3456-7890-1234
Titanium AntiVirus+ from QVC installer
For programs availed from your Internet Service Provider
Serial NumberGet the installer from your ISP
Serial Numbers starting with "TAEF"
Example: TAEF-0012-3456-7890-1234
Titanium AntiVirus+
Serial Numbers starting with "TOEF"
Example: TOEF-0012-3456-7890-1234
Titanium Internet Security
Serial Numbers starting with "TXEF"
Example: TXEF-0012-3456-7890-1234
Titanium Maximum Security
For your old Trend Micro program
Serial NumberDownload and install this program:
Serial Numbers starting with "X"
Example: XFFF-0012-3456-7890-1234
Trend Micro Maximum Security
Serial Numbers starting with "P"
Example: PFFF-0012-3456-7890-1234
Trend Micro Internet Security
Serial Numbers starting with "A"
Example: AFFF-0012-3456-7890-1234
Trend Micro AntiVirus+
Serial Numbers starting with "M"
Example: MFFF-0012-3456-7890-1234
Trend Micro Antivirus for Mac

 

You are using an incorrect or mistyped serial number

The issue can also happen if you used a different serial number or mistyped the serial number when registering your program. You can resolve this by changing the serial number in the program's main console. To do this, follow the steps below:
  1. Double-check the serial number for your program. A new window will appear.
  2. Type the new serial number.
    Enter Serial Number
Note: If you purchased your Trend Micro program online, you can find the serial number on the order confirmation email. If you bought the program from a retail store, look for the serial number in the sticker on the product box.
If you still encounter the error message after performing the actions above, contact our Technical Support for assistance.


Rate this Solution
Did this article help you?

Please provide your comments to help us improve this solution.

 
  *This form is an automated system. General questions, technical, sales and product-related issues submitted through this form will not be answered.
 
 

Connect with us on