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Windows 7 Product Key not found after upgrade of 10

@abstract 064 0 Reputation points
2023-10-30T08:13:59.8266667+00:00

My windows 7 (activated) recently got crashed so I managed to install windows 10 using usb. i did succeed but windows 10 is not activated. Windows 7 was also Activated but windows 10 upgrade didn't detect my product key, also i cannot find it anywhere. What do I can do, I also cant afford a new lisence to windows 10. Is there any way to Activate windows without purchasing a new product key? Plz help me solve this problem

Windows 10
Windows 10
A Microsoft operating system that runs on personal computers and tablets.
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  1. S.Sengupta 18,656 Reputation points MVP
    2023-10-31T02:08:45.6566667+00:00

    Microsoft no longer allows users to activate new installations of Windows 11 or 10 using product keys from older versions, such as Windows 7 and 8.

    The Windows 10 free upgrade through the Get Windows 10 (GWX) app ended on July 29, 2016.

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  2. Wesley Li 8,780 Reputation points
    2023-12-25T08:23:09.5766667+00:00

    Hello,

    The Windows system versions will have different product keys differed by versions, the windows 7 product key cannot be upgraded to windows 10, so I'm afraid you will need to get a new product key to activate the windows 10 system.

    Here is some explanation about windows activation:Activate Windows - Microsoft Support

    If you don't have a digital license or a product key, you can purchase a Windows 10 digital license after installation finishes. Here's how:

    Select the Start button.

    Select Settings > Update & Security > Activation .

    Select Go to Store .

    This opens the Microsoft Store app where you can purchase a Windows 10 digital license.

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