Problem Description:
This volume does not contain a recognizable file system description file system structure of this disk is damaged. If the data is not important in peacetime, it can be directly formatted can use it. But sometimes there's data is important, then we must first restore the data re-formatting. Specific recovery methods can be seen to understand the text (not formatted recovery method) 
Tools / Software: Ultimate data recovery software
Step 1: After the first Baidu search and download the software to run, select the need to restore the disk, and then point "Start Restore" button 
Step 2: The program will soon find the file, into the same directory that you want to restore the disk volume label name in 
step 3: check the data to be restored, and then click the save the upper right corner of the "save as" button to check out the file COPY. 
Step 4: wait for the software to copy data complete enough. 
Note 1: This volume does not contain a recognized file system recovery out of the data temporarily saved to another plate.
Note 2: If you want to restore the hard disk volume does not contain a recognized file system needs attention, you must first restore the data re-formatting.