How can I tell if this PC is covered under my 3 PC 360v5 Product license?

I have four PC's, three of them should be covered by my Norton 360 product order, but, I am unsure about two of the units; one is an old unit, I used to use, and one belongs to the church, but I cannot tell which one I covered?  Silly sounding question, I know, but, that is where I am at.  Old and memory challenged.....  It would be great if you could ask the Norton software, Thanks

I have four PC's, three of them should be covered by my Norton 360 product order, but, I am unsure about two of the units; one is an old unit, I used to use, and one belongs to the church, but I cannot tell which one I covered?  Silly sounding question, I know, but, that is where I am at.  Old and memory challenged.....  It would be great if you could ask the Norton software, Thanks

Quoted question description:

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I have four PC's, three of them should be covered by my Norton 360 product order, but, I am unsure about two of the units; one is an old unit, I used to use, and one belongs to the church, but I cannot tell which one I covered?  Silly sounding question, I know, but, that is where I am at.  Old and memory challenged.....  It would be great if you could ask the Norton software, Thanks

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You can check for a match between information is the Symantec programs product key file and the product key for this product in the Norton account.  If the product key in the file (on your computer) matches the product key for the product's installations shown in your Norton account, then that machine is covered with that particular product. 

 

As example what I mean, on my computer here, I have a filepath like C:\username Documents\Symantec\Norton productName_key.txt , and in this file, there is a product key.