OK - I understand now (I think).
The first archive you posted had the complete set of everything you used to create the signed driver (other than the drive's source code).
That looked to me as if it was your personal, backup, archive of your work.
Not the 'end user' archive you intended to publish.
Yes - people here have mentioned that Win10 is more than a bit funky about that driver.
The rndis protocol is used by many, many devices, not just Kindles.
so I would expect that you would post your driver somewhere that Win10 users would find it, rather than only Win10 users of Kindles.
Note: We discourage the posting of closed source software at this site.
If you can give a link to your modified source code for the driver, that would be great.
But in this case, we will not ask that you be banned, just because of the funky terms of some Windows Driver License.
But if the driver code is your own work (or you have a license to publish it) -
then please give us a link to the public repository of your code (including its Open Source license).
You should understand that we get enough closed source code here from Amazon.