Description of the problem:
it is unavailable described structure of the disk file system is damaged. Appears after the upgrade win10, suggesting "position is unavailable, inaccessible," I'll teach you to solve specific recovery methods can be seen to understand the text (not formatted recovery method) 
Tools / Software: Ultimate data recovery software
Step 1: Download and unzip program to open first, simply double-click the need to restore the partition. 
Step 2: After the software to scan data, will be placed in the same directory that you want to restore the disk volume name in 
Step 3: The need to restore the data hook on the upper right corner and then click the save, the "save as" button, the file will be on the hook COPY out. 
Step 4: Wait for the program files are copied on it. 
Note 1: The location is unavailable recovered data temporarily saved to the other tray.
Note 2: If you want to restore the hard disk should be noted that the location is not available, you must first restore the data re-formatting.