missing operative system

[gameornothingelse]

i was trying to install kali linux into my pc.therefore i selected my g drive as swap area. but then it showed formatting drive suddenly i power offed the system. now i cant even boot into my windows 7 ultimate. it shows missing os . one more thing i am not able to find my g drive anywhere

 

[Coup77]

It sounds like you have killed the partitions on the hardisk, I'd boot the PC with a gparted iso and check what the partitions on the HDD's look like before you go any further....