Bios Problem? OS problem? Please Help!

This is my very first time in building my computer, everything went fine for the first three weeks or so, but there seems to be a problem... ( I think I might be dealing with multiple problems but here is my backstory)

Recently, I have played around with my windows 8 os, essentially downgrading it to 7 because the features were quite annoying. Well, it was fine and all, until when I noticed after I finished downloading my updates for windows 7, my doctor debug would not light up anymore, and would only light up during the motherboard splash screen.

Okay, despite me noticing this, I knew that the dr. debug would startup during the Asrock splash screen with the menu...Alright, but then suddenly, I decided to reinstall windows 8 because I grew tired of experiencing a very slow bootup time for windows 7. >_<


Now this time...the remaining files from windows.old and sorts irritated me, I deleted that with diskmanager, but remaining bits of data also remained, so I decided to tweak my pc settings to see if I can do something to my harddrive.

All of a sudden, my windows 8 cant recognize any file, and when I restarted in panic, I received a message saying "Your PC Needs to be Repaired."

Now the issue is, could I wipe my harddrive from my Asrock BIOS? Is there anything I can do to get out of this situation?

Would be appreciated if someone can help.