The laptop was Win8 Home. I put 10 pro and a key from ebay. Is it legal?

Question

Windows

What is a license and what is an activation. When are they the same and when are they not?
1) wine 8 home from the factory, supplied 10 pro. It seems like this release of 8ki is not updated to pro. I bought a key on ebee for 10 pro. How do I know if I can use pro edition?
2) if, for example, a laser machine is bought, and with it there is a cutting program with a hardware key, and I have this key, is it a licensed cutting software, or just activated by a hardware key?
3) if I have 2 computers on which this software is installed, but there is only one key, and the program only works with the key, and I carry the key with me, sticking it into the computer I want to work on. In this case, how many licenses / pirates?
4) if my neighbor buys a hardware key and starts using it, then the license will remain with me, and activation with him? Or will the license also go to him along with the key?
5) if I buy a pre-activated software installer on eBay, do I buy a pirated one? And if they give me a hardware key, and the distribution kit from the developer's site?

Answer 1

What is a license and what is an activation.

• A license is a document issued by the copyright holder that allows you to use the program. If you do not have a license, you are using the program illegally. It has nothing to do with activation.
  
• 2.Your software is activated with a key. Do you have the right to use - unknown.
  
• 3.Unknown, you need to read the license.
  
• 4.Purchasing a key does not give the right to use, so if you sell only the key, then he will be able to use the program, but not the right to use the program.
  
• 5. You buy a key, and nothing else - a mechanism, device or information that can disable the protection of the program. Neither the distribution kit nor the key gives the right to use it.
  

Answer 2

A license is a document issued by the copyright holder that allows you to use the program. If you do not have a license, you are using the program illegally. It has nothing to do with activation.
1) When buying a laptop with Win10, I do not have a document. Unlicensed?
2) if there is a license in paragraph 1, then replacing the equipment with another (part of the equipment or whether it is completely) does my license remain?
3) if I sell this laptop to a friend, will I still have the license, or will it go with the laptop?