Thanks for your response back scrt, that does help a bit to know you have a traditional HDD drive and an eMMC SSD embedded drive as well.
Mostly, your explanation is confusing to me. You didn't answer my Question directly about whether or not your W10 is actually Activated or not? Yes or No? If you did the upgrade from either W7 or W8.1 during the 1 year free-trial period of W10 which was July 29, 2015 through July 29, 2016, then your W10 should have been Activated. If it was not, then either you did something wrong during the W10 upgrade process, or the person you paid to do it did it wrong. I am not understanding your statements about "optional Registration" of W10 B.S. Your Lenovo laptop is either running W10 Activated and Licensed or it is not. Here is a photo below of exactly what I am referring to:
If either you or the Tech you paid to upgrade your laptop to W10 did the upgrade correctly, then your W10 would be Activated as shown in the sample W10 System screen as per above. The question you asked, where is your Product License key located is an often asked question here on WF. It turns out, that your laptop hardware and License key are both stored on the Microsoft Activation Servers maintained by Microsoft in their Redmond, WA headquarters in the USA. If you are outside of the USA, then the closest MS servers to your country or possible located in your Country. That information can be replicated and copied around the globe in a matter of minutes. So, if and when you decided to replace your HDD with a SSD drive for example, or your HDD failed and needed to be replaced, you can do a W10 Clean Install using bootable media (DVD or USB) by making the Microsoft Creation Tool (MCT) located on this page on Microsoft:
Link Removed
During the Clean Install process, the MCT tool will connect your Laptop via the Internet to the Microsoft Activation Servers where both your Hardware configuration and W10 Product License Key are both stored, and downloaded back into your Laptop where the Activation process can be completed. This process can take from 1-2 hrs. typically, but the entire Clean Install process can take from 6 hrs - 24 hrs. or so and is dependent on the speed of your laptop, amount of RAM installed, etc. There are free tools that can extract the License Key if you wish to have it on hand, such as Magic Jelly Bean and WindowsKeyFinder. However, those are no longer necessary as you can understand from the explanation I gave you.
Hope that helps clear things up for you! The good news is, that if your laptop is currently running W10 Activated, you don't have to worry about changing your hard drive due to upgrade decision or due to catastrophic hardware failure; Microsoft has eliminated that with the new Activation process.
However, if your laptop W10 is
NOT Activated, you may have a much harder time getting the key without having to purchase one, since your upgrade was done improperly.
<<<BBJ>>>