I'm starting to think you are trolling us.. Installing visual studio has its own forum... Most here are embedded programers, I hardly ever use visual studio...
Well, I've run into a similar problem few days ago (I'm also C beginner).
Answer to my problem was, that scanf() is reading until it reaches something it cannot read (if there's int, then str, etc.), so try put there something, that's not a number (e.g. if you want to use input 24, then write: "24 x")
Maybe proramming isnt for you then as stuff like this is what programming is all about.
are you DL the right program, ru x86/64 , got enough ram, correct win ver... ect, maybe try a older ver of studio, i DL 2015 last week cos it was the only free one that works with my Pc.
try your own h scripts, using prebuilt(someone elses) leaves you susceptible to their code and their mistakes.