Win10 can not identify the hard disk

1, the hard disk does not respond after power-on
When the power is turned on, after starting the computer, I found that the hard disk did not respond, can not find the hard disk in the BIOS. If this happens, most of it is caused by a problem with the hard disk motor. At this time, you should find a professional maintenance staff to carry out repairs.
2. The sound of the hard disk is “& 哒哒 rd rd < < < < 当 当 当 当 当 当 当 当 当 当 当 当 当 当 当 当 当 当 当 当 当 当 当 当 当 当 当 当 当 当 当 当 当 当 当 当At this time, you should immediately turn off the computer and take the computer to a professional repair location for repair. Otherwise, your precious data will never go back.
3, unable to access data and can not copy data
When entering the operating system, you can see the data on the hard disk, but can not access the data, and can not copy and paste data. When this happens, you can basically determine that there are bad sectors on the hard disk, or there may be problems with the hard disk firmware. You can use the bad software to test whether the hard disk has bad sectors.
4, the hard disk is running normally, the BIOS can not detect
When the laptop is started, the hard disk is not detected in the BIOS, but the hard disk can operate normally. This situation is basically caused by a firmware problem, or it may be that the hard disk initialization information is lost. If this happens, the data is basically unsuccessful.
5. Hard disk misidentification
When using a laptop, it is found that the laptop hard disk detected in the BIOS is different from the actual hard disk. This situation is caused by the offset of the hard disk head, or there may be a problem with the hard disk firmware, causing the hard disk to be misidentified.