You may need to change the Trend Micro serial number for various reasons, including upgrading from a trial version to a paid version or replacing an already expired license with a new one.

There is no need to reinstall the product. Follow the simple instructions below.

  1. Double-click the Trend Micro shortcut on your desktop.

    Trend Micro shortcut on Desktop

  2. Click your program's expiry date.

    Click expiry date

  3. Click Change your serial number.

    Change your serial number

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

On other devices

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