MBR on wrong HDD need to move it / create it on primary drive


When I installed win 7 64bit I had two disks in my system... one SSD where win 7 was installed and a 2TB HDD where I keep all my files. Fore some reason the MBR was put on the second disk and if I take it out of the system I cannot boot.

How do I create a MBR on my SSD so that the system will boot off of it with the other drive not present?