Windows Camera Corrupted

[Its_Anindya]

I think my Windows Camera app is corrupted. Can use the camera from third party apps but Can't access Windows Camera from Notification Center, camera button or from start screen app list. Even in Storage app list I can't find the name, only one app with the Dev name - Microsoft Corporation (7mb) is appearing which is probably the Camera app though I can't access it anyway. The problem occurred during the installation of the last update for the app. While installing the app my phone suddenly restarted which might have caused the app to crash. Can anyone tell me how to recover it without hard reset?