Problem description: The
H drive cannot be opened. The disk is not formatted because the internal structure of the file system of the I drive is damaged. Open the d disk prompt formatting the specific recovery method see the text 
tool/software: extreme data recovery software
Step 1: First download and unzip the program and open it, directly double-click the partition that needs to be restored. 
Step 2: After the software finds the data, it will be placed in the directory with the same name as the disk to be restored. 
Step 3: Check the data to be restored, and then click the upper right Save the corner, "Save As" button, copy the checked file. 
Step 4: The last step is to wait for the program to copy the data. 
Note 1: If you want to restore the unformatted removable hard disk, you need to pay attention, you must restore the data first and then format it.
Note 2: The data recovered from the unformatted disk needs to be temporarily saved to other disks.