serial number invalid

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  • Question
  • Updated 6 months ago
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Just purchased a renewal product and it's telling me my new serial number is invalid
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mcss9955

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Posted 2 years ago

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TM_L, Official Rep

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Hi @mcss9955, thank you for renewing our product! 

We've checked your account information and we confirmed that you purchased Antivirus + Security (Expiry Date: 2017-11-07). Please double check if your installer matches your license.
Here's a reference doc for the steps: 
“Invalid Serial Number” error message appears when activating Trend Micro Security program

Please try and let us know if this resolves your issue. Thanks!

Trend Micro Home Users Community
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sseay

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I don't know what you mean
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sseay

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I don't understand sorry
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sseay

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could you send me an email with another serial no?
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TM_Shella, Employee

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Hisseayand welcome to the community!

Did you encounteran Invalid Serial Number error message as well? If so, what is the name of theTrend Micro program you have installed on your computer? Your serial number isfor Maximum Security so you should install the same.

Pleasenote that we have several antivirus programs and each are for specific serialnumbers. For references, you may download Maximum Security from the link below.

Installing Maximum Security

Lookingforward to hearing from you soon.

Regards,



Trend Micro Home Users Community