Windows 10: Recover Windows 10 home edition product key

I have a Microsoft Windows 10 Pro Version 10.0.19044 Build 19044 which I recently purchased retail product key. Am I able to retrieve the previous Windows 10 Home edition product key which was installed prior to this one the previous windows Home 10 edition was also purchased as a retail product key ?

:)

 

Recover Win 10 product key

Incorrect. The OEM Windows 10 Pro key is embedded in the bios. There was no need to buy anything....

Recover Win 10 product key post #15.

 

Why was I not asked for a product key when upgrading to Win 10?

According to your spec you have Win 10 Pro, but perhaps that doesn't reflect your PC.

You haven't stated which edition of Win 10 you have on this machine, nor what your Win 10 key is for.

For example, if you already have Win 10 Pro and your key is Win 10 Home, that would be a retrograde step.

For interest only:
Change Product Key in Windows 10

More on product key if you search this list or look at 'Related Tutorials' in the above.
Windows 10 Tutorial Index

 

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?