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Register your installed program on Mac to get the best protection from the latest security threats.

  1. Open Trend Micro Antivirus.
  2. Click the Expiration Date at the lower right corner of the Program Main Menu.

    Trend Micro Antivirus - Expiration Date

  3. Click Change your serial number.

    Trend Micro Antivirus- Change Serial Number

  4. In the boxes provided, type your Serial Number.

    Enter your Serial Number

  5. Click Done.