Despite measures of prevention or performing backups, a hard drive failure and we could lose valuable information falls within the possibilities of the day to day in view of the fact that the hard disk can suffer accidents, errors of various kinds.
When a hard drive is not recognized by our operating system, makes strange noises or directly seems “dead”, how to retrieve the information that it contains, especially personal and/or work and we have no backup, is a necessity. There are softwares and some checks that we can be very helpful to know the situation confronting us and be able to act accordingly to recover the missing information on a hard disk.
Types of fault on a hard disk: how to recognise them
Before a failure of a hard disk drive occurs the first thing that we need to know is whether it is a physical failure or software. We start by examining the physical part and for this, if it is an internal hard disk, the most comfortable way is to remove from its usual place but keep it connected, so that we can manipulate comfortably.
FAILURE OF THE HARD DISK EITHER PHYSICAL OR LOGICAL/ELECTRONIC/SOFTWARE GOES IN DETERMINING THAT WE CAN RESOLVE THIS ISSUE OURSELVES AND THE AMOUNT OF INFORMATION THAT CAN BE RETRIEVED
once the hard disk is removed we check if when turning on the hard disk spins or emits a noise that we cannot associate with the usual when we have been working with it normally. If the operation is not making a noise and it does not appear that the disks to spin (in the case of the mechanics), make sure that is not a problem of the power. It is best to check that the cables are properly connected and there is no damage to them. If despite all continues without doing anything, we can try to change the cables to discard that is there the fault.
In addition to that, related to the supply between electronic faults of a hard drive is to consider the logic board of the disk (PCB). Find a model exactly the same and change the PCB could serve in very specific cases, but that task that seems easy entry is almost impossible to perform with current disks, which have some components such as the parameterized heads for that particular disk.
The Faults OF PHYSICAL HARD DRIVES typically require the intervention of specialized companies, with a high cost for the home user. In any case the disk MAY NO LONGER BE USED WITH SECURITY
In these cases it is recommended to seek solution to issues of PCBS in technical services that have environment, tools and parts that could be used to retrieve the information that has been inaccessible in the hard disk.
If the hard disk is connected it is turned on but produces strange noises (the typical is a clac-clac repetitive) we must begin to think that the problem is mechanical and due to errors in reading the header by a shift of the same or that the dishes are damaged. Here a small stop: if listened once the “trick” to freeze the hard disk, except that your drive is very old and very low capacity, better not try it out. It will not work with the new materials of the dishes, which already are not affected at that level by the heat, and there is a higher risk of losing the data completely that to solve the problem.
These faults of headers can be caused by blows, continuous vibration or degradation of the emulsion. In addition to the repetitive noise (you can also start with a noise and then suddenly turn off), it is normal that the drive may not be recognized by the BIOS and sole fail the system startup.
IF WE GET A HARD DISK WITH PHYSICAL FAULT RUN FOR A TIME, THE ONLY THING WE MUST DO IS MAKE A CLONE TO TRY TO RECOVER THE INFORMATION IN THE COPY AND NOT THE FAILED DISK
in the majority of cases of physical or electronic faults, is going to require the intervention of a specialized firm that will make changes or head cleaning, transplant of dishes, repairing firmware modules …
Repair a failing hard drive
when trying to retrieve information from a failed hard drive, the best of the situations is that the damage is not physical but logical. The reasons can be numerous: a format not premeditated, corruption of files, clearing of certain documents or even a virus. In many of these cases, the user with the help of specific software can recover all or part of the information.
If our DISK HAS BAD SECTORS WE MUST ACT AS SOON AS POSSIBLE SO THAT THE INFORMATION THAT WE CAN RETRIEVE IS THE LARGEST POSSIBLE
on the basis of the situation in which the operating system starts or partition, external hard disk or even areas of internal, are not accessible, there are different ways that we can take to try to save the information.
If the error is for bad sectors that may be caused by degradation of the hard disk itself or by a failure of the header punctual, the hard disk will be accessible and the action we will have partially make it immediately to prevent the problem is going to worsen. It is normal that we note the symptoms by a sudden slowdown of the operation of the hard disk or even noise when it comes to access to the area affected by these bad sectors.
Although you can retrieve all the information if the damage is not physical, even the bad sectors, there is a 100% guarantee that happen always so.