Windows 10: Recover Windows 10 Home product key

I bought a Windows 10 Home pack with USB stick some time ago. It came with the activation key on a card inside the box. I remember opening the box to check what's inside, but I never ended up installing this windows on any of my machines and the box was just sitting on my shelf. It seems that I have misplaced the card with the activation key. I still have the box with the serial number, usb stick and everything else. Is there any way to recover the lost activation key so that I can install this Windows 10 Home and activate it? Thanks

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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.

 

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?

 

Finding the Windows Vista product key

Allright,I've tried the Hirens BootCD on USB drive and it works like charms.unfortunately,none of the utilities included on it helped me to recover the vista product key..but thats not important anymore,cos I just did a fresh install in the end..everything works fine,but a new issue arise.
DVD drive not recognized in my computer under Vista
tried few things but no results..what do you suggest guys?