Windows 10: How to recover a windows 11 key after upgrading it from windows 10

HiI bought my laptop around November 2021 and upgraded it from windows 10 home to windows 11 home on the same day. Today, my little brother tried to use a windows 11 pro key from a website that was giving it away for free, and it didn't work. I'm not able to find the old product key to revert to my old windows 11 home. I tried following youtube tutorials and posts on answers.microsoft.com but the key they gave me didn't work. I'm not sure if this is because I upgraded the software after I bought it. If it means anything, I did hard reset the PC once between that time, but it stayed on windows

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Installing Windows 10 using Windows 7 key

Nope, you need to install Windows 10 first and make sure the Windows 7 key is transferred to your Windows account after you've installed Windows 10 (not quite sure how that works). I missed the last step and I could not activate Windows 10 after a re-install... Microsoft seem to have done everything they can to make it a PITA. Also, it's technically too late to do this now anyhow, as the upgrade offer has expired. But KMSPico works quite well...

As for getting rid of Windows, delete the Windows folder.

 

windows 10 key

Thanks but I don't want to do any decrypting. I want to download a Win 10 ISO from Microsoft and install it using my Win 8 key. No other steps required. Is that possible?

 

windows 10 key

Now that I have finally upgraded from Windows 8 to Windows 10 will my Windows 8 key work with a fresh install of Windows 10?