So I recently reinstalled Windows 7 Pro. I started using the installation, and really don't want to reinstall again, as I'm mid semester and need to be up and running. but windows didn't create an mbr at the front end of my primary partition. So I'm trying to figure out how to create one. I've managed to create the partition using a piece of partition manager software, but I'm not even sure what file system to format the mbr with, and once I do, what to put on it!!! Need some serious help from someone with sufficient software experience to do this.