Despite the growing popularity of flash memory, mechanical reading of data written to the hard drive remains. Often, with this method of work, bad sectors appear on the surface of the plates. And usually they cannot be restored, but there are exceptions.
The issue of information security on the hard drive forces developers to think over data storage to the smallest detail. However, in the actual operation of the device, all their tricks do not help.
Why sectors are deteriorating
The principle of operation of a mechanical hard drive is very simple. There are several round magnetic plates. Reading heads "run" over them and look for the necessary information. When the mechanism of a hard drive is subjected to vibration or sharp shocks, microscopic scratches can occur on the surface of the drive. This results in the corruption of sectors and the loss of data - programs, books, music or movies.
No matter how carefully you operate your PC, bad sectors may still appear on the hard disk.
If the hard drive has worked for several years, its tightness may be broken. Any speck of dust trapped inside is a potential cause of bad sectors.
Add to this power surges, sudden shutdowns of the PC and simply mishandling the computer, and there will be many more reasons for damage to information.
Is there a way out
If bad sectors appear, there is no need to immediately panic and urgently change the hardware. There are ways to either mark problem areas so that in the future they do not create problems. Or fix the damage with some special programs.
When bad sectors appear, there are two ways - use your own system program or a third-party one.
The simplest thing you can do is run a surface scan of the discs. To do this, right-click on the failed logical partition, select "Properties", then the "Service" tab and "Run check" by ticking the "Check and repair bad sectors" checkbox. The system will scan the disk, find errors and either return the sectors to a working state, or mark them as bad, so that the reading heads bypass them and do not create "brakes" in their work.
For more "advanced" users, we can recommend the HDD-Regenerator program. It works at the physical level and helps to cope with the problem where the standard disk checker program is useless. The regenerator does deep work and in most cases returns the sectors to their normal state. You will not lose data and significantly increase the lifespan of your hard drive.
There are many other programs, even those that only real "hackers" or experienced users can understand. However, in most cases, those two products described above are sufficient. They are time-tested and have helped in many difficult cases.
