Windows 10: About Activation My Retail License Key.

1. Can I activate Windows 10 by enter my retail key to my new pc without uninstall retail key from my already signed older PC?2.After activated retailed key , What happen when I signed my Microsoft account Digital License linked to Microsoft account... may be transfer my retail key to my MS account?3. If my 2nd question true, What happen when I signed my account to new PC? may transfer my retail key to new PCNow. I mention I have retailed Windows 7 & I updated to Windows 10. Finally I can take Windows 10 retailed Version. Also I want know my windows 10 retail key fake or not?

:)

 

Activation:"Digital License" form in-use before input of Retail Key...

"Windows is activated with a digital license..." -- this hasn't changed despite the input of a retail key.

 

Windows 10 retail license key

As noted, only Microsoft and through special relations and partnership, Amazon.com can resell digital licenses.

Those listed on ebay are likely MSDN product keys.

About MSDN or TechNet Product Keys

They are genuine Microsoft product keys, they are actually retail licenses, but it is intended for a particular product channel either the Microsoft Software Developer Network (MSDN) or TechNet for IT Professionals who pay a subscription fee. The main purpose
is for evaluation purposes. The great thing about them, unlike trial Microsoft software, MSDN or TechNet keys don't expire. Because the agreement under which the subscription is provided is a single license, none of the software should be distributed outside
of it. Even though its $50,000 worth of licenses, it is for one person only to use and no one else. Unfortunately, regardless of the licensing terms, persons still abuse the program, either giveaway product keys or resell it on auction sites. Microsoft licenses
it in good faith that customers won't do so, but I guess human nature wins out.

　

In your case, what probably happened is, you bought an MSDN licensed key, which carries up to 10 activations unlike full packaged retail licenses which only carry 1 activation. The person who sold it to you probably sold it to 10 other persons. Somewhere
along the way, one of those persons might have installed it on a second system, activated it, because it went past 10 activation threshold, Microsoft detected it that it was being abused and blocked the key from further use.

 

Windows 10 retail license key

I've been looking into possibly getting Windows 10. I found retail license keys being sold on eBay for extremely cheap (under $15). It
seems like there would have to be some issue with these. However, I'm not sure what the problem could be. I've been doing some research. If I understand correctly, if it's retail then it cannot be OEM. Also, if it's retail, I understand it cannot be
a volume license key. From what I understand, it cannot be MSDN, either. If it were simply pirated, then I don't see how it could be activated as they claim it can be. What am I missing? FWIW, it comes from Europe, but claims to be valid worldwide.

(Not linking to the eBay sale as I don't want to "promote" it if there is an issue with it. But what can you suggest to me based on the little info available?)

Edit: A possibility... could it potentially be resold to other parties and activated by them, but then if I reinstall (when enough activations have been done), I will be unable to reactivate again?