“How to upgrade an existing version to 2015? I am trying to update my Trend Micro system, but I got this message on the website: "Note: For Serial Numbers starting with Txxx-, contact the store or company that issued the license to get the appropriate installer for upgrade." I got my package from Best Buy.”

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• the number should be in the case remove the booklit and there is a paper with the number on it

  Answered by clubber 10 years ago

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• I'm excited to hear that you are ready for the 2015 version! The copy of Trend Micro Internet Security that you have requires a special upgrade file which you can find for free here – http://go.trendmicro.com/geeksquad-upgrade/. Happy Upgrading!

  Answered by Trend Micro 10 years ago

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• The product is intended as a new user product. You will have to contact Best Buy to see if they will give you an update number.

  Answered by Surgius 9 years ago

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