We'll get this resolved for you. I am confident this will work, if it doesn't and you are comfortable with this type of resolution, I can log into your computer with LogMeIn and attempt to re-install your OS for you.
Just because I know what it feels like to not have a phone (it sucks)..
LogMeIn provides you with 100% control over me, so there is no way I can do anything to hurt you, I just wanted to reassure you of this. If you want to do this method - PM me, I don't want any details over public forums.