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Have you encountered this pop-up message when you open your Trend Micro program?

"Activation Code Changed"

Why Did This Happen?

It's likely because you changed the activation code on your primary device, and it's essential to update it on other linked devices as well.

What Should I Do Next?

Let's guide you through the process of changing the activation code on different devices.

For Windows PC

If you are using Trend Micro on your Windows PC, follow these steps:

  1. Open Trend Micro on your Windows computer.
  2. Locate the expiry date at the bottom of the Trend Micro program window.
  3. Click on the expiry date to open a new window.
  4. In the new window, click on Change your activation code.
  5. You'll be prompted to enter your new activation code; type it in the provided field.
  6. Click Next to confirm the change.
  7. Finally, click Close.

For Mac

If you are using Trend Micro Antivirus on a Mac, here's what you need to do:

  1. Open Trend Micro Antivirus.
  2. Find Subscription Expires displayed at the bottom right corner of the program.
  3. Click the Change your activation code button.
  4. Enter your new activation code and click Done.

For Android Phone or Tablet

For Android devices, follow these steps to update your activation code:

  1. Launch the Mobile Security app on your Android device.
  2. Tap the menu icon (⋮).
  3. Choose Settings.
  4. Tap Renew / Activate.
  5. Tap the provided link that says, tap here.
  6. Enter your new activation code and tap OK.

For iPhone or iPad

If you are using an iPhone or iPad, follow these steps to update your activation cpde:

  1. On your iPhone or iPad, open the Mobile Security app.
  2. Scroll down and tap Settings.
  3. Tap Trend Micro Account, then select Account Control and Sign Out.
  4. Provide your password and tap Sign Out.
  5. Return to Settings.
  6. Under ACCOUNT & REGISTRATION, tap Set Up Account.
  7. Enter your email address and password associated with your new activation key, then tap Sign in.


By following these steps, you can easily resolve the 'Activation Code Changed' issue and enjoy seamless protection on all your devices.

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