recover purchased windows 8 download activation key

I made the mistake of updating my BIOS and it trashed my RAID install, so I had to start from scratch again. is the Produkey method even valid with this? I've read in other places that if you do a clean install just skip the license key entry and validate your install through the store once the system is up and running.

This may be old news for some, but posting my experience and what I uncovered anyhow. At first they told me I would have to buy another copy of Windows 10 and I was furious and demanded a supervisor, at which point they realized I had bought a legitimate copy and proceeded with getting it activated. I have what I believe is called a 'digital entitlement' which is basically locked to the hardware it was installed on. Microsoft has changed the way they do the licensing a bit for Windows 10. I ended up calling Microsoft support, got transferred 4 times, and finally got to a nice young lady that remoted into my machine and fixed the issue for me and got the system activated. The key I extracted from the previous install was blocked due to the hardware changes. I recently built a new system (specs in sig), and to make a long story short I went through LITERAL HELL with Microsoft to get this re-activated.

I found it strange that they did not send me a key, so no problem I'll just use Produkey to extract it and store it somewhere safe if I ever have to do a re-install. Last November, I purchased Windows 10 Pro (full retail) from the Microsoft Store as a digital download. Posting this here as both a question and FYI for anyone that may run into this in the future.

Recover purchased windows 8 download activation key