I am trying to install Qt 5.9.4 for windows. Install says it needs 35.54Gbytes for downloading. That seems like a lot making me think that I did something wrong. Is this normal? I deselect everything but 5.4.9 and thats how i got it down to 35G.
If depends on what you choose, if you selected all the possible packages for 5.9.4 then that's normal. It means you would install the MinGW version plus all the Visual Studio flavours as well as Android ones.