Key to hard disk failure judgment key to hard disk failure

Transferred from: CCID

Hard disk failure is the most unacceptable for customers. Judging hard disk damage can be roughly divided into the following aspects:

1. After power-on, the hard disk does not respond the same way as before power-on. The vast majority of this situation is due to circuit problems, and the hard disk motor will not be broken.

2. after the power is connected, the hard disk runs normally. It can be detected in bios and mounted as a slave disk. This hard disk can be found in disk management, the screen displays "Disk not allocated ". In this case, the partition table is messy, and the partition cannot be identified.

3. After power-on, when you hear the sound of the hard disk or other abnormal sound, the power should be immediately cut off. Do not try again. If you try again several times, the disk may be crossed out by the head, and the precious data will be completely lost.

4. After entering the system, you can see that the data cannot be accessed or the data cannot be copied. This is mostly because of bad sectors on the hard disk. There may also be hard disk firmware problems, and some special characters may occur when you use bad track repair tools. The quality of the hard disk's disk surface media is poor.

5. The hard disk runs normally but cannot be detected in the BIOS. This is basically a firmware problem. It may also be because the hard disk initialization information is lost, which basically cannot be saved.

6. Hard Disks are incorrectly identified, most of which are caused by head offset. Some hard drive firmware brands may be incorrectly recognized.

As the current hard disk capacity is getting larger and larger, and the speed increases, the calorific value also increases. Do not attach the media to the hard disk. This is because when the disk is hit, the head may be disconnected from the track to draw the disc. Data is priceless. How can we maximize recovery after data is lost! First, call a professional data recovery company for preliminary analysis by professional engineers. If you know the approximate fault, you can choose to recover the company. This data success rate will be greatly improved.