[ubuntu] an Update wiped out Windows from boot menu, how to get it back?

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http://ubuntuforums.org – I think it was a recent update of my system (running ubuntu 12.04) along side windows 7. Windows does not appear in the grub boot menu anymore. Ive tried to restore it using the grub costomizer but it doesnt even appear their either. Im not sure exactly when it disappeared and which update did it (or if that was the cause at all) as I dont use Windows 7 too much but still do use it. Any Ideas on how to get it back? Thanks in advance (Hardware)