Problem description: The
prompt is not formatted, indicating that the file system structure of this disk is damaged. The mobile disk shows a prompt that it is not formatted. For how to find the specific recovery method of the data, please refer to the text to understand (the recovery method without formatting) 
Tool/Software: Extreme Data Recovery Software
Step 1: After Baidu search and download the software to run, directly double-click the partition that needs to be restored. 
Step 2: The software will quickly put the scanned data in the directory with the same name as the disk to be restored. 
Step 3: Tick the data to be restored Click on the upper right corner to save, "Save As" button, copy the checked file. 
Step 4: The last step is to wait for the software to copy the files. 
Note 1: The data recovered without formatting needs to be temporarily saved to other disks.
Note 2: If you want to restore the removable disk, it prompts that it is not formatted and you need to pay attention. You must restore the data first and then format it.