Problem description: The
file or directory is damaged and cannot be read, indicating that the file system structure of this disk is damaged. What should I do if the file or directory of the mobile hard disk is damaged and cannot be read? How to fix it? See the text for the specific recovery method (recovery method without formatting) 
Tool/Software: Extreme Data Recovery Software
Step 1: First download and unzip the program and open it, directly double-click the partition to be restored. 
Step 2: After the program finds the data, it will be placed in the directory with the same name as the disk to be restored. 
Step 3: Tick all the data to be restored, and then click The "Save As" button in the upper right corner will COPY the checked file. 
Step 4: Wait for the program to finish copying the data. 
Note 1: The file or directory is damaged and cannot be read. The recovered data needs to be temporarily saved to another disk.
Note 2: If you want to restore the file or directory of disk I that is damaged and cannot be read, you need to pay attention, you must restore the data before formatting.