Here's what I did. Go into the recovery CD again and install the OS as if you normally where. The only thing you DON'T DO is format the disk. What will happen is, all the files that YOU made will not be deleted. However, the profile will be deleted. This does not mean that the folder is deleted as well, it's still there so don't worry about it. I've done this a few times myself. BTW, this will not fix your OS because nothing beats a clean install. Just do that, and backup your files. From there, do a clean install.