Activation Issue on Unsupported Lenovo Device After Windows 11 Upgrade

[Windows 11]

I recently upgraded my Lenovo device to Windows 11, even though it’s not officially listed as compatible by Lenovo. My device originally came with Windows 10 pre-installed at the time of purchase, and the upgrade to Windows 11 was successful. However, I am now facing an activation issue.I suspect the problem might be due to the lack of official compatibility, but I’m unsure if that’s the exact cause. Since Windows 10 was pre-installed on my device, I don’t have the product key readily available. How can I retrieve my original product key to resolve this issue?Additionally, I would like to know

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