Description of the problem:
the drive disk is not formatted described structure of the disk file system 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: Download and unzip the software after the first run, select the need to restore the disk, and then point "Start Restore" button 
Step 2: After the software to identify data, will put the directory you want to restore the disk of the same name in 
Step 3: The need to recover the data is checked, then click the save the upper right corner of the "save as" button to copy the files checked out. 
Step 4: The final step programs such as Just COPY files can be completed. 
Note 1: To restore disk drives in the disk is not formatted note, you must first restore the data re-formatting.
Note 2: The disk drive is not formatted recovered data temporarily saved to the other tray.