1 Copper


Hello ,

I have registered for this forum for a long time, but I rarely post it. To this day I have encountered problems, but I cannot find a topic corresponding to my problem. Please allow me to drive new miles ...

When I run produkey.exe in Windows 7, for some types of license keys, the "Product key was not found" message is displayed. I don't know where the problem is? And I found that the Windows product key successfully displayed in the ProduKey utility is different from the product key on the Windows CD. Is there a professional who can tell me the reason, I'm really confused.

I look forward to your reply, thank you very much!

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1 Reply
8 Xenon

Re: ProduKey

There are no windows disks at all any version that have the key.

The OEM SLP key in bios will not be the same as the COA sticker key.


A COA, or “Certificate of Authenticity” is the sticker located on a computer system that has a 25-digit license key for the Windows Operating System.

Windows 8 and 10 systems have the key in BIOS and do not have a COA sticker.





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