Windows 10: Recovering windows 10 product key?

A few months ago, my desktops' hard drive suffered a catastrophic failure. I am dumb, and I never made a recovery disc, and I cannot find the paperwork that came with my computer. I did, however, have my microsoft account linked to that computer, by which I mean I had to use my account name and password to log in. Before I spend the money on a new hard drive, is there any way to get my windows 10 key so I can use a recovery disc to get my computer up and running again?

:)

 

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?

 

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.