Having Trouble With A Clean Install?

So I recently built my first computer, and I was so excited it was going great, I installed all my drivers, and downloaded some of the software, steam, itunes etc. Anyway I will try to break this down to make this easier to follow,I stepped away while it was downloading LoL ,-I came back to see a screen saying Windows could not repair this computer automatically ,I performed some of the options, reverting to an earlier state, and even using the repair tool on windows itself,I then attempted to reinstall windows entirely, and I would just move some key files over from the Windows.old file,Instead my computer asked me to select which windows I wanted to run, after trying them both neither worked,-after surfing the internet, so I used the command prompt to clear my hard drive, I had figured I would just have to reinstall a few drivers and download some stuff no big deal,but instead my computer still prompts me to select one of two windows to run, again neither working,now installing off of the disk doesn't even finish