Answer 1

While this thread might help you:
https://stackoverflow.com/questions/43184887/dll-load-failed-error-when-importing-cv2

...I had an issue with it because at least one commenter suggests copying the DLL into system folders (which...I don't like that...you want to register DLLs where they LIVE, not relocate them / mess with system directories) so this thread may be better because it has at least one example of registering the right DLL:
https://github.com/skvark/opencv-JUMP_LINK__&&__python__&&__JUMP_LINK/issues/36

There are other answers there, but if you use the "regsvr32" one, I believe it can be used where the DLL is, instead of having to put it in system folders and then forget about it / leading to conflicts later.