Is it possible to see which windows 7 key was used to update to 10?


  1. tannim
    Posts : 19
    Windows 10
       New #1

    Is it possible to see which windows 7 key was used to update to 10?


    I have three retail copies of windows 7. I had 3 computers for them. I now have two computers and a spare key.
    The problem is, I am not sure which key is the spare key.

    Is there any way to tell which windows 7 key was used to upgrade to windows 10?
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  3. Boboson
    Posts : 4
    Windows 8
       New #2

    I think there is a way but not sure.
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  4. alphanumeric
    Posts : 15,037
    Windows 10 IoT
       New #3

    Try this utility, https://www.tenforums.com/software-ap...7-showkey.html If they were upgraded (not a clean install) this may retrieve it for you. Other than that, I don't know of a way.
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  6. tannim
    Posts : 19
    Windows 10
    Thread Starter
       New #4

    alphanumeric said:
    Try this utility, https://www.tenforums.com/software-ap...7-showkey.html If they were upgraded (not a clean install) this may retrieve it for you. Other than that, I don't know of a way.
    Thank you, Showkey worked and my problem has been solved.
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  7. alphanumeric
    Posts : 15,037
    Windows 10 IoT
       New #5

    Good stuff. On an upgrade the key is still in the registry somewhere, if you know where to look. That utility does all the hard stuff for you.
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