A:AnswerWell changing the Ethernet card inside the PC might void the warranty so I recommend an adapter that allows the Ethernet to use 5 GHz Internet speeds, a person writing a review did this and their speeds increased tenfold. Just look up 2.4 to 5 GHz Ethernet adapter.
A:AnswerFor more aggressive software and setups.
It is likely best to get an much more powerful CPU and system that allows more data sata connectors.
This is an entry level unit and it would sever you better to look for a system that better supports serves that might be used with virtual software to run virtual machines on.
More memory, more CPU cores, more pcie slots and more sata connector and possible M.2 slots will cut your hardships down when dealing with advance setups. Educating oneself well surely does cost. By your time will cost you more if you decide to run under powered equipment. Good luck
A:AnswerMost likely not. Almost every computer built for Windows 8 and 10 have no hardware drivers for Windows 7. But since some do, you need to check the website for all available drivers, which you'd need to anyway, before you install or reinstall Windows.
A:AnswerWhy yes it can. You might want to get a dedicated graphics card to run Diablo 3 at maximum settings and with 60 FPS+
But otherwise it should run all of those quite well.
A:AnswerYes you should have no problem providing their are proper hookups on your tv. I am currently using a 23 inch tv as my monitor and couldn't be happier.
A:AnswerI don’t know much about gaming on one platform and converting it to stream on another but it’s possible. You will need some adapters and maybe an Elgato recording card. But I’m sure it’s possible.