I've searched this topic and I can't find an article with a plausible solution, to my problem.
I installed Windows 7 first, with 100gb of disk space.
I then created the necessary partitions via Windows.
Finally I installed Ubuntu 12.04 on the remaining 400GB of disk space.
During the Ubuntu installation I installed the Ubuntu bootloader on
/dev/sda3 which Windows (as expected never granted me the option pre-boot for which OS I wanted to boot). So I re-installed Ubuntu on that
/dev/sda3 partition, overriding the Windows 7 bootloader.
Now when I boot windows 7, it runs GNU Grub, so like an infinite loop.
How can I reconfigure grub to say:
/dev/sda is the bootloader. /dev/sda2 is Windows. /dev/sda3 is Ubuntu.
Re-installing windows and my partitions isn't an option, purchasing software for windows isn't an option (there's a reason I use linux - it's not because it's free, but because you don't have to install many programs to get stuff working; and overall it's a robust OS).