The original available disk drive display is not formatted Solution

I. Problem description:

If you double-click a disk, the system will prompt that the disk is not formatted. For details, see:

Figure 1 double-click the M Disk and the system prompts that the disk is not formatted.

Figure 2. The system does not get any information about a previously accessible disk.

 

Ii. cause:

This is because the DBR (DOS) of the partition
The data in the boot record, that is, the first sector of the partition, is damaged. Why? There are many reasons, probably because the USB flash drive or the hard drive is not directly pulled according to the normal operation, or the sector may be physically damaged (for example, the track where the sector is located is scratched ), or the malicious software can rewrite the data in this sector. The physical damage to the hard disk is more complex. You need to mirror the disk before resuming the restoration or activating the G-list or p-list of the hard disk to automatically replace the Bad Sectors.

Here, the physical damage of the hard disk is not covered in this article. That is to say, if the hard disk to be repaired has no physical faults, the data is changed. (How can we determine whether it is a physical fault: generally, if you plug in a hard disk with a physical fault, the Windows system will run slowly, or even be in a suspended state, just remove the hard disk ).

 

Solution 3:

The partition in the format of FAT32 File System backs up the first sector (numbered 0) in the seventh sector (numbered 6, therefore, you only need to restore the data of the slice numbered 6 to the slice numbered 0. For the convenience of netizens, I wrote a small program specifically to cope with the above situation. Contact me QQ: 695326874

 

Iv. Summary

In fact, there may be a variety of causes for the same problem, and there are also a variety of solutions, the specific situation has to be analyzed (for example, if the sector number is 6 is also broken, how to restore the file ?). This article is just a solution for specific situations. I will write it one after another for hard disk file recovery in different situations.