How to repair hard drive failure?

There are generally two situations when a hard disk fails. One is the occurrence of logical bad sectors, which can be repaired. The second is the occurrence of bad sectors on the hardware. Some software usually says that they can repair them, but if they occur, the bad sectors can be hidden and shielded through some technical means. But the hard drive will still break after a while. So how to repair hard drive failure?

#The first thing we need to do is to determine whether your hard disk has logical bad sectors or hard disk bad sectors. Logical bad sectors are generally easy to resolve. They usually manifest themselves in the form of frequent disk scans when booting or a system disk not found when booting. Another is when running the system, it prompts that the file cannot be found or there is an execution error.

When encountering this kind of situation, if we can enter the system, we can first use the disk scan that comes with WINDOWS to repair it. This is the basic step.

If you can't even enter the system, you can use PM or DISKGENIUS to delete the system disk, create a new one and then reinstall the system. Or directly use the system disk to delete the system partition and format it before installation. It is best not to use quick format, but to format it normally and then install the system. Generally it can be solved.

Or there are other methods to repair hard disk failure:

1. Boot error and cannot start normally. This situation is not necessarily "bad". Usually clearing the MBR and then repartitioning is 70% better. If not, it should be classified into the third category.

2. It can be partitioned and formatted normally, but the scan found that there is a "B" mark, which is commonly known as "bad sectors". There is no distinction between "physical bad sectors" or "logical bad sectors" here. If the number of "B"s is small (less than 100), basically 80% can be repaired into a "good hard drive". This situation can be solved by using some general maintenance software.

3. It cannot be partitioned normally, or it cannot be formatted after partitioning. In this case, professional repair software is required. Depending on the brand, the repair rate is different. Generally it reaches about 50%.

4. It will not rotate after power on. In this case, the circuit board is usually faulty. You can just replace the circuit board IC or the entire circuit board. After starting, we will deal with different situations according to different situations. More than 60% of them are completely cured, but some may have other types of faults at the same time.

5. The self-test sound is normal, but the BIOS cannot recognize the disk. This is caused by many possible reasons. If it is a problem with the circuit board interface, repair the circuit board; if the hard disk enters the internal protection mode, you need to use professional software to switch it. Fujitsu hard drives often have this kind of problem, and the repair rate is about 90%.

6. After powering on, the magnetic head knocks continuously. This situation is mostly caused by damage to the magnetic head, but there are also cases where the magnetic head is not damaged. If the former does not save the data, there is no need to replace the head for repair, while the latter still has a 50% chance of being saved.

7. The noise is loud after power on. Except for a few cases that can be solved by correcting the spindle, they are generally not repaired.

8. Forgot password. Most hard drives can be password protected. If you accidentally forget the password, it will be extremely difficult to unlock it. However, there are still ways. Most brands of hard drives can use professional software to remove password protection.

In addition, some hard disks are seriously damaged and have too many bad sectors (some disks cannot exceed 3000, some cannot exceed 8000, and some allow more than 10000). The solution is to remove the problematic heads. Or reduce the capacity and change the model at the same time, it can still be regarded as a usable "good hard drive". This can greatly improve the repair rate!

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