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Windows Product key not activating after updating to windows 11

Snspro 0 Reputation points
2025-08-22T14:41:07.83+00:00

I had Windows 10 Home activated on this PC with my Microsoft account before. I changed my storage drives (both HDD and SSD, because my old ones were corrupted) and booted using a USB into Windows 11 Home. But this time my product key didn’t work. It’s a Windows 7 Home Premium OA key. I searched online and most people said it shouldn’t be a problem unless I changed my motherboard, which I didn’t. What should I do? Is there any way to fix this?

Personally, I think contacting Microsoft Support directly and asking them to fix this issue is the best option but I can’t reach them. Whenever I try, it only leads me to this community support.

Windows for home | Windows 10 | Licensing and activation
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  1. CrazyKats 8,715 Reputation points Volunteer Moderator
    2025-08-22T15:01:00.15+00:00

    Hi,

    You may have to revert back to Windows 10 Home.

    Make sure it's activated and then update back to

    Windows 11 Home. https://www.microsoft.com/en-us/software-download/windows10

    Good luck

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