Q: Wifi does not connect and Bootcamp icon does not show up in windows

(I am a complete noob at macbooks, so please bear with me c:)

     So about a week back, I had installed windows through bootcamp, and then erased the ISO image. But yesterday, my windows claimed that I no longer had any space, and as a result, I erased my windows through bootcamp, and was going to redownload windows with a little more space.

     Unfortunately, I noticed that I had threw away my windows ISO, as said earlier, so I got windows again onto my computer and did all the bootcamp processes. Everything went fine until I finished all the downloading and was in the windows home screen. Without checking anything, I just opened up the windows browser and then noticed that I could not connect to the internet. So like any typical person, I directed my attention to the icon for wifi and then noticed that there was a red X next to the wifi icon, and even though I tried manually connecting to my wifi and did various troubleshooting processes, the end result was still that I could not connect.

     I then opened up the little triangle icon to switch back to bootcamp, and then noticed that it wasn't there. Freaking out, I searched through the web on my phone, and it said to open control panel small icons and there should be bootcamp there. Problem is, it isn't. So I freak out once more and, as the internet says, turned on OS X through restarting my computer and then holding down option.

    I am not sure what to do in order to make my windows work, as I tried re-partitioning 3 times to no avail. What should I do?

     (Side note: I live in South Korea, but my computer is an America version.)

(Thanks for reading up to here ^.^)