RAW drive can be caused by many possibles reasons. But no matter what caused the consequence, you have to forma it, for raw file or drive can not work under the windows.
But, if you still want to get out the data there, you can take a recovery program to have a try, such as
Recuva, PC Inspector,
iCare Data Recovery Free, and
Easeus Data Recovery Wizard Free, etc. But i am not sure you can recover them all back after reading your description.
Don't give up!
You still have to chance, just have a try!