Chavenson Laurent

I'm having trouble using this application to download windows 10, it keeps telling me to check my internet connection and TPS 1.2 is checked by default as well as 1.1 and 1.0 and I turned it off and on, any ideas as to why it's not working? I'm using windows 7 home premium and here's the error. And what I did to get their. Extra error text at the bottom left hand corner of the screen, I put it under the image and all I did was press windows 10 to try and get the version I wanted to install but a blank screen and the error came up. The underlying connection was closed: An unexpected error occurred on a send.