Solved How to add operating system to system start-up list

Hi, I have three operating systems on my pc. I only recently installed a windows 7 64 bit on a ssd but after doing so, I had to do a system image recovery to my windows 8 installation from a date prior to the new windows 7 install. This Windows 7 is not on the list of operating system options in system startup so how do I add it? Thanks Robby