ugh, grub based problems are a pain.
Would it mean any significant data loss to you to simply do a fresh clean install?
That's the easiest way out.
If that's an option for you (I'm thinking it is since you have multiple drives)
I would do this SSD / HDD : Optimize for Windows Reinstallation
then this. Clean Install Windows 7
You may want to wait for some other opinions. I know grub issues can be solved they always seemed like more trouble than just reformatting to me though.