Here's what I suggest, convert the Windows 7 Logical drive to a Primary partition so it can host the Windows "System" boot files; start by having a look at this link
and the second post down to see what I'm referring to (posts # 16 & 18) and feel free to ask any questions you need to clarify.
First download the Partition Wizard Bootable Disk (PWBD) ISO file to the desktop, be sure to get the PWBD and not the installed version; scroll down to see the download link for the Bootable CD ISO file at this link below.
Partition Wizard Free Bootable CD
Then use ImgBurn to burn the ISO to a CD, at no greater than 4x speed with a verify; it was designed for use and works best from a CD rather than a DVD; then boot
the created CD to make the changes, it doesn't take any input from the user to setup, just relax and let it load.
ImgBurn Free ISO Burning Software