To successfully repair or recover data from a hard drive, it must be properly diagnosed. Diagnostics at Inter Laboratory is free of charge and will take a few minutes. However, so that its result does not disappoint you, you can try to diagnose the disk yourself.
It is necessary
A computer with a known good power supply, good drive cables, and, most importantly, hearing
Instructions
Step 1
We connect the disk to the standard computer interface (IDE, SATA, USB) and the power supply. We turn on the computer.
Step 2
Regardless of whether the computer boots or not, we listen to what happens to the disk. A normal disk should spin up, crackle a little (!) (The heads are recalibrated) and continue spinning. If, instead of the sound of the rotation of the plates, we hear a squeak, then we have either the sticking of the magnetic heads, or with the wedge of the engine (depending on the model). If, after unwinding the plates, we hear distinct blows, or multiple repetitive clicks, the magnetic head unit is faulty. In case of both faults, the disk cannot be repaired; data recovery is possible only in a specialized laboratory.
Step 3
If no extraneous sounds are found, check if the disk is detected in the BIOS. If not, the disk service information is most likely damaged (it can also be called firmware). Repair is in question, data recovery specialists can restore data using special equipment.
Step 4
If the disk is detected in the BIOS, we check its presence in the disk manager: right-click on "my computer" -> control -> disk manager. Normal disk information: size, file system, letter. If we see messages like "RAW file system", "disk not initialized", etc., we are dealing with a damaged logical structure of the disk (damaged file system). For successful data recovery, you should check the disk for unreadable sectors, their number (since they can be caused by a head failure) and location. If there are no unreadable sectors, you can programmatically recover the data (of course, it is better to entrust this to professionals). If we have surface damage, then to read out such a disk, a special software and hardware complex is required.
