Somehow "the right answer" marked a comment where it is recommended to run chkdsk /r /f.
As correctly noted by the other responding, is not the best way.
Moreover, CheckDisk is a very bad way to recover the data.
The loss of information from any carrier not start checkdisk yourself, and let Windows automatically do any "disk check".
Chkdsk can only clumsily try to improve the state of the file system. The data he mercilessly crumbles and discards the remains in the files .CHK.
After that, the task of data recovery much more complicated, because now you will need to manually collect your files from the randomly scattered pieces. This is not always the power of even a professional with years of experience, not to mention the simple user.