I believe that many people will encounter a lot of media prompts "Disk is not formatted, whether it is formatted", Darth data recovery here to summarize the various reasons and recovery methods, I hope to be slightly useful to readers, Let us be the terminator of the data killer.
Usually this happens when:
1. Sudden power failure, mobile hard disk or USB flash drive, etc., directly unplugged without unloading, double-click the drive letter after entering the computer again, "Disk is not formatted, formatted"
2. Digital camera SD card, CF card, mobile phone MMC card and other unconventional crashes or unconventional operations (such as incompatible card reading devices), causing the digital card to access the computer prompts "Disk is not formatted, formatted";
3. The system is reinstalled in the middle of the error, the system is not completed, the hard disk is externally mounted on other computers, and the partition prompt "Disk is not formatted, formatted"
4. After encountering a virus or hacker attack, click on the partition and prompt "Disk is not formatted, formatted"
5. Physical bad sectors appear on the hard disk. Open the partition prompt "Disk is not formatted, formatted"
6. The hard disk is encrypted, the password is forgotten or lost, or the underlying sector of the hard disk is in an encrypted state due to a decryption program failure. Click on the partition to prompt “The disk is not formatted, formattedâ€.
The above situations probably include all the appearances of such failures, but in essence they are caused by the fact that the BOOT sector in the file system structure cannot be recognized by the operating system normally, whether it is destroyed by a virus or broken. The data in the electrical moment is turbulent, or the original data is encrypted. Let's take a look at how to recover the data inside the wrong partition.
First of all, when we encounter the prompt "Disk is not formatted, whether it is formatted", it is impossible to follow the meaning of it, format the media, this is a further damage to the data, can not believe online Some people have a coup - first format the media and then download some data recovery software to recover the remarks. Keep in mind that any loss of data and protection of the field state is a guarantee that you will reduce your losses or increase your recovery success rate.
Secondly, since we have already clearly defined the essential cause of the failure, it will be much easier to solve. Our most commonly used DOS partition system The file system under Windows platform is nothing more than FAT and NTFS. When their BOOT sector is wrong, we can replace it by looking for their backup. The backup under the FAT partition is in the sixth sector of the file system, while the backup of the NTFS partition BOOT is in the last sector of the file system. So the first solution is to check whether the backup sector exists normally. If it exists, copy and paste the backup sector to the corrupted BOOT sector.
Third, if the backed up BOOT sectors are also corrupted or lost, then you need to manually rebuild their BOOT sectors. This kind of operation is undoubtedly very difficult for most users, because the operator needs to have a very deep understanding and practical ability of the file system structure, so in this case, in the consideration of data security, it is recommended that users Do not operate without authorization, as soon as possible to find a professional data recovery company to help you solve.
Fourth, the above solution is a treatment for 1-4 cases. If the prompt formatting caused by the fifth physical bad track occurs, it is more troublesome because it rises to the category of hardware failure. At this time, because the original BOOT sector is broken, we cannot reconstruct and edit the sector. Naturally, data cannot be rescued. More importantly, frequent reading of bad sector data will cause bad sectors to further The exaggeration even caused the entire disk to break. In this case, you need to use a professional mirroring tool to mirror the faulty medium to another good medium, and then repair it on the logical level.
Finally, because the underlying encryption of the data prevents us from getting the correct BOOT sector parameters, the file system cannot be parsed. The only way to recover data in this case is to first clear the encrypted state of the hard disk, otherwise you will not be able to perform any effective analysis and repair.
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