I've seen countless forum posts on how to rectify this problem, but I keep encountering random issues when doing so. I'm currently using a USB stick with the windows installation media to try to see what's going on. At this point I have no clue what's gone wrong. I can post any necessary screen shots if anyone can help me figure out what grave mistake I've made. Thank you.
I believe that you only need to fix your bcd and mbr. This because your bcd and MBR table might be corrupted.
You can run command from USB Installation Media: