For all users that use symantec system recovery 2013 desktop edition please come in and help me

i have a problem i'm using symantec system recovery 2013 desktop edition and i want to backup only one drive,but i have dual-boot which means two operating systems windows 8.1 pro 32bit and windows 7 ultimate 32bit. now one partition is logical with ntfs system(windows 7 ultimate 32bit) and the other is boot partition and primary(windows 8.1 pro 32bit).i need help what should i do!?. should i backup from windows 7 or from windows 8.1!?.i'm only want to backup the parititon that holds windows 7 please if anyobdy knows please reply me back or you can contact me on my 

email address or facebook address:[Removed]

[Admin Edit: Removed Email address]