Is it possible to make video tutorials on Unity 5 without the permission of the author of the program?

Question

Copyright

Hello everyone, I need advice on how to do the right thing in one thing.
I have been doing 3D modeling for a long time, I recently started learning Unity 5.
I think I should make a couple of lessons on creating games and put them on YouTube, but there is a problem here.
As soon as I swooped down, I understood Blender 3D is free software and you can use it to take lessons as much as you like, take screenshots of the interface and post them on your website. But Unity 5 cannot be partially distributed, I have screenshots of the program without the permission of the author of the program (I understood this swoop from other forums, but there was nothing said about the video there?).
Actually, the question is: before I shoot full-fledged lessons on Unity 5 and put them on my website and on YouTube, should I contact the author of this program and ask his permission, and do I need to ask Microsoft for permission, because when shooting video lessons in a frame Windows 10 controls will also inevitably fall.
What should I do according to the law? So that campaigns don't sue me in the future.

Answer 1

Yes, it is not prohibited by law. You can even make money from it. You can’t give the impression that you are a Unity developer and this is your product, but you can record a video of working with the program.

Answer 2

Depends on the software license.
If the EULA does not prohibit it, then it is possible.

Answer 3

In fact, you don’t owe anything, shoot for your health.