How to change your Trend Micro Security serial number

  • Solution ID:1059090
  • Last Updated:Jan. 14, 2020 5:54 AM (PST)
  • Applies to:Antivirus+ Security - 2018;2019;2020;Internet Security - 2018;Internet Security - 2019;Internet Security - 2020;Maximum Security - 2018;Maximum Security - 2019;Maximum Security - 2020;Premium Security - 2018;Premium Security - 2019;Premium Security - 2020;
  • How to change the serial number | Trend Micro Security

You may need to change the product serial number for various reasons including upgrading a product license from a Trial version to a Full version or replacing an already expired license with a new license.

You can easily change the Serial Number without reinstalling your product.


New serial numbers should be compatible with the current Trend Micro version installed on PC.

Change it from the Subscription Information window
  1. Open Subscription Information window, do either of the following:
    • Using the Trend Micro main console:
      1. Double-click the Trend Micro shortcut icon on your desktop.
      2. Click your program's expiry date.

        Click_Expiration_date_Trend_Micro_Security

    • Using the Trend Micro system tray icon:
      1. Right-click the  Trend Micro  icon in your system tray (near the clock).
      2. Click Check Subscription.
  2. Click Change your serial number.

    Subscription_Information_Trend_Micro_Security

  3. Enter your new serial number, then click Next.

    Enter_the_Serial_Number_Trend_Micro_Security


Change it from About the Software window
  1. Open the About the Software window, do either of the following:
    • Using the Trend Micro main console:
      1. Double-click the Trend Micro shortcut icon on your desktop.
      2. Click the Profile icon located at the top right corner of the main console.
      3. Click About the Software.

        About_the_Software_Trend_Micro_Security

    • Using the Trend Micro system tray icon:
      1. Right-click the  Trend Micro  icon in your system tray (near the clock).
      2. Click Check for Program Updates.
  2. Click the serial number.
  3. Enter the new serial number.