Installing and removing ubuntu

I have a computer that was running windows 7. I had two physical hard drives, C: & D: I installed ubuntu, and i think I installed it at the end of C and beginning of D. MY com is wanting to check the drive for consistency, how can i remove ubuntu and return drives to original state. I dont know if the computer is set to create automatic backups, if so will a system resotre remove ubuntu and change it back to before?
Answer #1
How did you install Ubuntu….With Wubi or did you partition your drive?
Answer #2
windows was installed and spanned across the C and D drive. I partitioned the drive.
-fixed-
i had to create a new mbr