sir main usb se windows seven kar raha tha to ghalti se partition delete ho gaya aur wo ab partion show nahi ho raha hai jo "f" drive ke naam se tha uss me meri bahot important data parti thi plz help me ke ye partion wapus aa jae aur data bhi loose nahi ho plz aur agar koi aisa software hai to plz bata de ke jo ghalte koi drive format ho jae to uski data wapus kese haasil kare plz agar aisa koi software hai to bataye help me