Problem Description:
only hidden file formats that produce mechanical hard disk after formatting. But if immediately stop writing new files, then most of the files can be restored. Specific recovery method is also very simple. 
Tools / Software: Ultimate data recovery software
Step 1: Open the software, simply double-click the need to restore data disk, upper right corner after the point "Start Restore" button, you can start scanning the data. 
Step 2: Once you find software file, will be placed in the recovery disk directory with the same name in 
Step 3: data will be restored on the hook, and then save the upper right corner of the "Save As" button to copy the file on the hook out. 
Step 4: The final step only need to copy the software is complete enough information. 
Note 1: If you want to restore the mechanical hard disk is formatted to be noted that the data must first restore order to the disk into a file.
Note 2: Format recovered data temporarily saved to the other tray.