Hard drive problems are often the cause of computer crashes. In this article, we will learn how to diagnose and eliminate them. You can read briefly about its internal structure in the article "".
In general, it must be said that hard drive problems- this is only one of the possible problems of unstable system operation, and there can be quite a lot of them. But, don’t get me wrong, if I try to describe them all in one article, then you will get confused in your head and there will be no sense. Therefore, let’s agree: in this article we deal exclusively with hard drive problems, and next we will talk about problems with RAM, power supplies, etc.
The hard drive can rightfully be considered one of the most unreliable computer components, and this is understandable, since it has, on the one hand, a complex mechanical component, and, on the other, electronic control boards. And any mechanics additionally suffer from physical impact (shocks, shaking, vibration, etc.).
But how can you determine if everything is wrong with your hard drive (hard drive)? Perhaps your computer starts to reboot spontaneously, periodically shows a BSOD screen (blue screen with white text on it), and suddenly freezes during operation? All of these are potential hard drive problems.
In my practice, there were cases when, due to the large number of bad sectors on the disk, the operating system did not want to be installed on it. In such cases, a message appears on the screen stating that a particular file cannot be written to the disk.
In such a situation, the hard drive must be checked for the presence of so-called (bad blocks). It must be said right away that there are bad blocks brain teaser And physical. As the name suggests, physical blocks are formed as a result of physical micro-damage to the magnetic layer of the disk platters.
In this case, we are not talking about restoring such sectors, but rather the issue of saving information on another reliable medium and (in the near future) replacing the damaged one should be considered. The fact is that physical blocks (as opposed to logical blocks) tend to increase in number. And this is logical, since, being damaged, the magnetic layer of the disk plates begins to gradually collapse.
Hard drive problems associated with the formation of logical block problems can be quite successfully eliminated using special software. And your computer will feel like new again :)
The formation of a logical bad sector is associated with a mismatch between its checksum and the checksum of the data written to this sector. This could be caused, for example, by an unexpected power outage while the disk is being written to. The scanning program “fills” (overwrites) such a sector with zeros, resetting the checksum of its data.
Quite often in my practice, in matters related to problems with hard drives, I have observed the successful “treatment” of hard drives that had several dozen logical bad sectors.
There are many different programs that successfully cope with this task. Each of them also has its own unique features and functions. I wouldn't like to list them all here. In the next article I will talk about only one of them for now (personally, I use it very often at work). It is very easy to learn and does its job perfectly.
a few more cases of hard drive problems
What other situations should we be prepared for? First of all, if the computer suddenly freezes, remove the side cover of the system unit and listen to see if there are any clicks or slight grinding sounds coming from the hard drive?
The fact is that problems with the control system for the block of magnetic heads of a hard disk often lead to the fact that the read-write heads cannot be positioned correctly and begin to move haphazardly over the surface of the platters or “fall” (touch their surface), creating the same grinding.
It will also be useful for you to know that during the production of hard drives, their surface is divided into tracks and special technical information is applied to them - servo marks. The magnetic heads are oriented along them, positioning themselves over a certain sector. Servo marks do not disappear with any type of disk formatting, but can easily be damaged if the magnetic plate is physically damaged. The result, I think, is obvious and the heads will not be able to position correctly.
This is what the magnetic head unit looks like, located inside our hard drive.
Let's talk a little about what you should first pay attention to when there are problems with your hard drive: first- extraneous and uncharacteristic sounds coming from the hard drive. At home, repair is impossible, since to replace the MMG (magnetic head unit) you will need to open the hermetic zone of the hard drive, and the inevitable ingress of dust into it is guaranteed to “kill” the disk. It is very likely that you will need to contact a service center, and most likely you will have to change the hard drive.
Second- excessive overheating of individual parts of the device (controller chips). You can try to cool the overheating area with a small computer fan, which can somewhat delay (sometimes it was possible for more than six months) the inevitable complete failure of the equipment, but sooner or later you will have to change the hard drive anyway, since with prolonged operation at elevated temperatures, internal burnout (degradation) of electronic components is simply inevitable.
Let's look at an example: we had one hard drive at work (it still lies in my desk drawer), the malfunction of which led to regular computer freezes about twenty minutes after it was started. Naturally, the first thing we did was check it for bad sectors (bad blocks). There were none; other surface diagnostic programs also did not reveal any problems.
But another interesting thing was discovered: one of the elements of the disk controller was clearly overheating compared to the rest of the microcircuits.
Temperatures up to 40 degrees Celsius are considered normal for a hard drive. A person’s pain threshold (when something hot makes you want to pull your hand away) is about 55 degrees. So, after ten minutes of operation, the chip heated up to a temperature where you wanted to pull your hand away; after another ten minutes, the computer froze tightly.
We decided not to use an external fan (fortunately we had a spare hard drive), but keep this possibility of a hard drive problem in mind.
I wanted to say a few more words about the controller board itself. It is located on the back of the disk and looks something like this:
The controller is a complex device (simply - a minicomputer, with its own microprocessor, a certain amount of RAM, cache, I/O operations, etc.). It is entirely responsible for sending information from the read-write heads to the external interface of the hard drive (IDE or SATA connector).
With this photo above, I want to immediately “kill” two birds with one stone: show you what the controller circuit looks like and hint at what happens when system logic chips overheat for a long time :) As you can see, part of the chip simply collapsed. In specialized repair shops, such hard drive problems are eliminated by completely replacing the controller board. In principle, you can do this yourself, but you must take into account the fact that the donor disk must be absolutely identical the one to which the replacement board is transferred, otherwise you can only aggravate the situation with data recovery from it.
Note: if any element on the controller burns out, the situation will not necessarily look so tragic! The photo above is rather an exception. But putting your palm (if the hard drive malfunctions) on the controller while the PC is running is the first thing! Make sure that something on it is not overheating?
The normal (safe) operating temperature of the disk is up to forty degrees Celsius (a little higher is also not scary). But if the temperature of individual drive elements exceeds 50-55, be prepared for the troubles that will certainly follow: irreversible changes (degradation) of the elements located on the disk controller board may begin.
Unfortunately, the matter may not be limited to just replacing the board. The fact is that each controller has its own software “firmware” in the service area of the disk (service area), which, when the system boots, tells the BIOS basic information about the hard drive (number of sectors, heads, cylinders, etc.). If we simply replace the board without replacing the “service”, we will not achieve the result, so it is recommended to do this procedure in specialized service centers.
Let's take a closer look at this point!
Third a typical case of a hard drive malfunction: then the engine tries to spin the magnetic plates and after a while it stops and this repeats at regular intervals. This problem can be easily identified by placing your palm on the top cover of a working hard drive. You will definitely feel the moment the engine spins up and stops. Repair hardly makes sense - the disk needs to be replaced.
I would also like to note that hard drive problems can also be caused by problems with the interface cable for data transfer from the controller to the drive. I remember we had a case: the computer periodically froze, displayed a “blue screen of death” (BSOD) and spontaneously rebooted. It turned out that the reason was a broken retainer for the SATA interface cable.
which had poor electrical contact on the hard drive side and therefore caused all these problems. We replaced the cable and the problem disappeared.
At the end of the article I would like to dwell on such technology as “S.M.A.R.T.” (English) self-monitoring, analysis and reporting technology) - monitoring, self-analysis and reporting technology. Assessing the general condition of the hard drive using many parameters in order to predictions the time of its failure.
“S.M.A.R.T.” appeared in the early 90s of the last century and over time it has acquired a large number of measured and observable parameters that help prevent hard drive problems. Indicators of the health status of the disk are read by the program and displayed in a user-friendly form. Based on these data, we can draw a conclusion: how much is “left” for our device? :)
For example, this is what the program status window looks like “ HddHealth", with which we looked at one of our disks (Seagate 250 GB), which gave a warning about deteriorated S.M.A.R.T. parameters when loading the operating system.
Notice the highlighted areas in the screenshot above. The “Health” indicator is 1%. As they say - “no comments”, the device can leave us at any moment :) The “Temp” value shows us the current temperature of the hard drive.
If you enter the “Drive” menu and select the “SMART Atributes” option from the menu that opens, you can view the entire list of observed hard drive parameters:
Factory settings for the parameter " Value"(English - "value") usually have initial parameters of 100, 200 or 250. The higher the value, the better. High values indicate no change or slow deterioration of this parameter. " Treshold" - value threshold (value, ideally, should not approach or fall below it). " Worst" - the minimum indicator that the system demonstrated during testing and measurements.
Critical parameters that precede hard drive problems are:
- Raw Read Error Rate and Seek Error Rate - wear of the magnetic surface or heads of the BMG
- Spin-Up Time and Spin-Up Retry Count - problems in mechanics
- Reallocated Sectors Count, Reallocation Event Count and Current Pending Sector Count, Uncorrectable - presence of bad sectors, already moved bad sectors and ready to move
You can use the HddHealth program.
Below I would like to present to your attention the recorded sounds of hard drive problems produced by products from different manufacturers. Perhaps this selection will help you navigate by ear when diagnosing a malfunction?
Operation of a working IBM hard drive (standard)
|
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| Lost contact between the controller and the HDA | |
| Knock of an IBM hard drive with a faulty BMG | |
| Knocking sound of a Seagate hard drive with a faulty BMG | |
| Sounds of a fully functional Seagate drive | |
| Fully working Fujitsu | |
| Fujitsu disk knocking with BMG malfunction | |
| Knock of Quantum disk with non-working BMG | |
| Maxtor disk with the same problem | |
| Sometimes it happens:) | |
| BMG rattle at Western Digital (WD) | |
| Tapping from Samsung | |
| Fully working Samsung hard drive |
The computer can function stably only if there are no problems with the hard drive. Today we will look at that unpleasant case when there are malfunctions in the hard drive of a laptop or desktop computer.
A hard drive is a complex device that is one of the most important components of a computer, performing the task of storing computer information. Considering that a hard drive is, first of all, a mechanical device, it is quite often susceptible to various problems that arise due to physical impact.
How can you tell if there is a problem with your hard drive?
There can be many symptoms. Here are the main ones:
1. Suddenly the laptop or computer may reboot;
2. Windows often crashes, displaying a blue screen of death;
3. At any moment, even under moderate load, the computer can freeze;
4. The system message “Windows has detected a problem with the hard drive” is displayed;
5. Windows doesn't want to install;
6. Very long access to files on the computer;
7. Windows installer doesn't see hard drive, etc.
How to troubleshoot hard drive problems?
Method 1: eliminating bad blocks
First of all, you can try to get by with little expense (provided that the disk has been in use before) and check the hard disk using a special utility for the presence of bad sectors or, as they are often called, bad blocks.
There are two types of bad blocks – logical and physical. In the first case, they are formed programmatically, namely, as a result of a mismatch between the sector checksum and the checksum of the data written to this sector. This type of problem can be easily resolved using special programs.
Physical bad blocks, as the name suggests, appear as a result of physical impact. In this case, microdamage occurs in the sector, which interferes with reading the data. Blocks of this type cannot be cured, and if there are too many of them (and they tend to multiply rapidly), then you need to think about replacing the hard drive.
Today there is a sufficient selection of programs for working with the treatment of a hard drive from bad blocks. I would especially like to highlight the following:
1. Victoria. A popular program for testing and treating bad sectors on a hard drive. The program carries out low-level work, which allows you to efficiently heal your hard drive. The program is distributed completely free of charge.
If, based on the results of one of the proposed programs, the problem with the performance of the hard drive has not been resolved, the problem may be much more serious, but there is still a chance that you can return the disk to normal functioning on your own.
Method 2: eliminating overheating
If Windows starts normally, but after a while the computer freezes, this may indicate that the hard drive is overheating.
You can check the temperature of the disk using special software, for example, the program Speccy. This tool is distributed free of charge, so you can download it from the developer’s official website using the link below.
Normally, the hard drive temperature should not exceed 40 degrees Celsius. If in your case, for example, the temperature is around 50 degrees, then you can notice obvious overheating of the device.
High temperatures are usually the result of a failure of one of the hard drive chips. Unfortunately, the death of the hard drive in this case is guaranteed to be inevitable, but it can be slightly delayed by installing an additional computer fan that will cool the system and prevent overheating.
Method 3: Self-diagnosis of the hard drive
Listen to your laptop (system unit). Is there any cracking or grinding noise coming from under the device? If the answer is yes, it's most likely your hard drive making these sounds. This may indicate incorrect positioning of the magnetic heads that read information, as well as various types of mechanical damage.
Also, a very common problem is that the motor starts to spin the metal disks of the hard drive, but after a while its movement stops. You can easily understand this if you place your palm on the top cover of the hard drive.
Do not attempt to repair your hard drive yourself at home - most likely, you will not succeed, but as a result, you can easily damage the drive, after which even specialists will not be able to help you.
Unfortunately, the statistics are such that physical hard drive failures occur much more often than logical problems. This is what makes a solid-state drive (SSD) more attractive in the eyes of many users - this device does not contain any mechanical moving parts, which means there is practically nothing to break.
Today we will talk about what could be the reasons for the message: “Windows has detected a hard drive problem.” In addition, let's try to figure out what needs to be done in this situation, as well as how dangerous such an alert is. Let's quickly find a solution to the problem.
Operational actions
Well, if you see Windows reporting problems with your hard drive, you can usually start to panic. Especially when you don’t have all your data saved on your computer. The thing is that such behavior is the first sign of damage to your hard drive.
Typically, if you click Show Details, the operating system will tell you the path where the failure occurred. To avoid having to change the hardware later, you just need to completely format the partition. True, before such experiments you have to write all important files to a removable hard drive or flash drive. However, it is not recommended to turn off or restart your computer before all data has been saved.
So, if you see the message: “Windows has detected a hard drive problem,” get ready to take decisive action. The most harmless thing is to format the damaged partition. But there are other outcomes of the current situation. Let's get to know them quickly.
Error correction
If Windows detects problems with your hard drive, you can act in time and avoid colossal problems. To do this, just in case, write down important data on any medium, and then scan your computer for errors using standard tools.
How it's done? Very simple. To get started, press the hotkey Win + R. Now in the window that opens, run the command “gpedit.msc”. Go to the "Disk Diagnostics" section. It is located in "Configuration", in "Administrative Templates". Go to “System”, then to “Diagnostics”, and there you will find the function we need.
Now wait for the process to complete. Ultimately, you should correct the detected errors and problems. Restart your computer and work on it for a while. The message: “Windows has detected a hard drive problem” should stop bothering you. True, this option does not always work. Especially if you have a serious failure or damage to your computer.
Getting rid of viruses
True, sometimes a similar problem can arise when Trojan horses penetrate the operating system. In this situation, as a rule, it all comes down to prompt inspection and high-quality cleaning of the “axis” from various types of infection.
To do this, you will need to use a good antivirus program. Dr.Web will work great. True, sometimes users prefer Avast or Nod32. In principle, there is not much difference. Quickly start a deep scan and then clean all detected malicious files. If it doesn't work, just delete it. When the process is completed, restart your computer. Just don’t forget to save your personal data to removable media before doing this. Look at the result. The message: “Windows has detected a hard drive problem” will no longer bother you.
Last resort method
But there is also a not very pleasant outcome. More precisely, there are two options for the development of events. We'll get to know both of them now. Let's start, probably, with what is considered a more optimistic outcome - you will have to reinstall the operating system, and at the same time format the damaged partition. In fact, if you have a fatal error, then this outcome is a very good result.
True, it may also happen that after restarting the computer you will see a black screen and... nothing more. That is, the computer turns on, but the system does not boot. Reinstalling the system does not give any results. In this case, you have only one choice - replace the hard drive with a new one. There should be no problems with a desktop computer - we disassembled the system unit, took out the drive, put it in a bag and went to look for exactly the same one. Found it? Then they bought it, came back, connected everything, installed the operating system and that’s it - you can continue to enjoy life.
But with laptops things are a little different. Here you will have to take it to a service center, where they will determine that the hard drive is broken (faulty), and then they will replace it. The entire process can take a month or more.
It is worth answering the fact that replacing the drive is usually required after the user decides to think about the question: “How to disable the message: “Windows has detected a hard drive problem”?” The point is that such a move does not rid us of the problem - it only disguises and hides it. That's all. Try to pay attention to the messages that the operating system gives you, and your computer can always be brought back to life.
Any computer owner sooner or later faces such a problem - the hard drive is broken. In order to minimize the risk of data loss, you should make it a rule to duplicate all important information on another medium. You also need to know that before a breakdown, certain malfunctions appear in the PC, which are harbingers of the death of the storage device.
Signs of a hard drive failure
It is possible to determine that it is the hard drive that has failed if the computer is not operating correctly by looking at certain signs. How to understand that the hard drive is broken:
- The appearance of a blue screen while the PC is working or loading indicates that the media is broken. The system cannot read the bad sectors and Windows stops working or reboots. This results in the loss of unsaved information.
- If strange noises appear during PC operation, reminiscent of a clattering sound, then the head unit on the hard drive may have broken. In this case, you can try turning off the device and starting it again. The reason for incorrect reading of information can also be the accumulation of dust on the read-write elements.
- If, when you turn on the PC, the hard drive does not make any sounds, this may indicate damage to the batteries. Such malfunctions occur due to voltage surges, but modern devices are equipped with protection against power surges. But if this happens, then everything can be easily eliminated by replacing the fuse. Also, the reason why the hard drive does not make any sounds may be stuck heads.
- The appearance of such an inscription on the screen as “disk or device not found” indicates that the hard drive has failed. You can find out exactly what faults are present using special diagnostic programs.
- Modern storage devices are more resistant to overheating than older models. But this still happens, and excessive heating of the electronic boards is a sign that the drive is broken. Determining the presence of such a malfunction is very simple. It is enough to know that the maximum permissible temperature for hard drive operation is 50, and touching a working device with your hand will not cause discomfort. If the temperature is higher than normal, you will feel it.
- You can determine that the hard drive is broken by the time it takes to access files. If there is a malfunction, then such a standard procedure as emptying the recycle bin can take several hours.
- A signal that the hard drive is broken is provided by such signs as damage and disappearance of files, and program malfunctions.
How to tell if your hard drive is broken
Modern hard drives have built-in programs to monitor its condition. To find out about possible problems and malfunctions, you need to decrypt the data collected by the system. There are special programs for this. Some are designed to provide real-time diagnostics and send status data via email.
If the hard drive is broken, then first of all you need to take care of saving the data. Even the possibility that the hard drive will work for some time makes storing important information on it very risky.
Harbingers of failure
Before the hard drive finally fails, there are signs indicating this:
- Slowdown of the computer is reflected in the system startup. PC performance is decreasing and this is a reason to check the hard drive.
- If your computer constantly restarts, one of the reasons may be a problem with the hard drive.
If any malfunctions are detected in the computer, the best option is to turn it off. If the hard drive is broken, then prolonged use of the PC will lead to irreversible consequences. The storage area will become inaccessible and data will be completely lost. You can find and fix the problem yourself, but it is better to seek help from specialized computer equipment repair services.
Data recovery
If your hard drive breaks, then almost everyone asks the question of how to recover data. Today, you can return lost files yourself, without the help of specialists. There are recovery programs for this, but they do not provide a complete guarantee. If all the nuances are followed, it is possible to return most of the stored information.
The principle of operation of the programs is to scan the surface of the storage device. In this case, some files are only partially restored, their name and location are lost.
Popular data recovery programs:
- R-Studio is one of the most famous programs for recovering deleted information. With certain settings, disk scanning is reduced and it is possible to set the recovery area of the hard drive. The program is available in Russian, which makes working with it very easy.
- Minitool Power Data performs a deep scan, making it possible to recover files that other similar programs ignore. The advantage of this utility is the ability to revive the entire disk.
- Rekuva is an easy to use program with a wide range of features. Allows you to restore information by setting the search area.
Hard drive problems on a laptop
If the hard drive on a laptop breaks down, it stops working and there is a possibility of losing all saved data. The signs of failure are the same as on a PC. But mechanical damage is not always the cause of hard drive failure:
- There are virus programs that can encrypt stored information.
- Malicious programs that damage operating system boot loaders.
How to minimize the risk of hard drive failure
The storage device will work much longer if you follow simple rules:
- The hard drive is poorly protected from power surges, so a high-quality power supply will be the key to its stable operation.
- To prevent the hard drive from breaking, it must be protected from falling and shaking. Mechanical impact can damage moving parts and render the device inoperable. Even a small blow is enough for this.
- Maintaining a certain temperature that is comfortable for the operation of computer components, including the hard drive. To do this, you need air flow through the PC case using fans.
- Cleaning computer components from dust using a can of compressed air. This will prevent the chips from overheating.
- It is not recommended to turn the PC on and off within a short period of time, as this will greatly affect the hard drive. If you need to take a break from your computer for several hours, it is better to put it in standby mode.
- To increase the performance of the hard drive, you should defragment it. This will speed up your computer.
- The drive on a laptop often suffers from temperature changes. Do not take the device outside at low temperatures.
- Laptops are more susceptible to dust clogging than computers. Therefore, to avoid overheating of the hard drive, you need to monitor the condition of the device.
- Make sure that the ide contact does not break when connecting the hard drive. One of the signs of a breakdown will be slow loading of files or complete inoperability of the computer. In special computer equipment repair services, such a breakdown can be repaired.
Have a great day!
In our time of technology, users are increasingly faced with computer problems. Today I will try to give detailed answers to many questions about fixing hard drive problems.
Checking the hard drive
I wrote in the article how to check the hard drive. The article describes the steps in detail and any user can easily check the HDD for errors or bad sectors.
Using this utility you can also check the SMART status. However, your HDD must be connected to a computer or laptop via an IDE or SATA connector, and not through an adapter that connects to USB ports. To check the status you need to go to the SMART tab. Click the Get SMART button. At the bottom you will see one of three inscriptions:
"Good SMART" - everything is fine.
“Bad SMART” - retire immediately.
"Get S.M.A.R.T. command… Error reading S.M.A.R.T!” - reading error. Most likely your drive is not connected via SATA or IDE interface, or you have a solid-state SSD.
The operating time of the hard drive can be seen in the Power-on time line, calculated in hours.
The SMART status can also be seen when you turn on the computer, if the BIOS provides and enables the display settings function.
If the condition of the hard drive is completely deplorable, then the Windows operating system will constantly remind you to make a backup copy or archive. If this window constantly pops up, then these are the first signs that your disk is in its death throes.
Hard drive treatment
The Victoria program test showed the status SMART Good, but a lot of Bad (Error). You can try to restore your hard drive by redistributing bad sectors using . HDD Low Level Format programs are best suited for this. The program is very easy to use and has only three sections.
Before formatting, extract all the necessary information; after low-level formatting, it will not be possible to return the information.
How to recover a hard drive
To the question: "TOHow can I restore my hard drive?— I will answer, as a rule, the hard drive is restored by specialists to extract information and it is not suitable for further use.
Why is my hard drive not visible?
Why doesn't a computer or laptop in Windows and BIOS see the hard drive? There may be several reasons. Let's start from the simplest to the most complex.
- Most often, the hard drive is not detected due to corrosion on the board contacts for connecting the heads. This problem occurs very often, and this is the first thing you should pay attention to. Remove the bolts holding the circuit board. Remove and turn the circuit over; if there is oxidation, clean with an eraser until clean. Put it back together and check if it works by connecting it to your computer.
- In previous generation HDDs, it was possible to replace a faulty board with a working one from a similar hard drive. Modern ones use new architecture and technology; each HDD contains unique microcode. Simply replacing the circuit board will not only not solve the problem, but may also lead to complete loss of data on the media. There are two reasons for this failure:
A) TVS diodes have burned out, usually there are two of them - 5 and 12 Volts. They serve as protection against voltage surges. You can check it with a multimeter; if the resistance shows about 0 Ohm, then the diode has burned out. The problem can be solved with a simple replacement. Remember that without TVS diodes, the hard drive remains without protection against voltage surges!
B) If the multimeter shows the correct resistance, then you need to replace the board. A ROM block with a unique microcode is soldered onto the board; you need to unsolder it and solder it onto another similar working board. Some manufacturers' drives, such as Western Digitals, lack the ROM block, and the firmware is contained in the main controller, which is almost impossible to replace.
The disc starts up and a clicking sound is heard
Clicks indicate damage to the magnetic heads, and it may also be the magnetic disk. With such damage, you should not run it, as the magnetic disk may completely deteriorate and it will not be possible to retrieve information in the future. It is better to contact a specialized service. There the HDD will be opened in complete cleanliness and the information will be restored. By opening it at home, you expose the device to dust!
Hard drive beeps
The motor tries to spin the disk, but cannot.
The first reason is sticking magnetic heads. After turning off the HDD, the heads, instead of going into their parking spaces, remained -on or -above the surface of the disk. An autopsy is required within the walls of a sterile room and only by a professional. Damaged magnetic heads are being replaced.
The second reason is spindle lock. This is the axis of rotation of the disks. Usually fails when the HDD is hit or dropped. Restoring a hard drive occurs in one of two ways: replacing the spindle or transferring magnetic disks to a donor disk.
The hard drive starts but is not detected or is detected with the wrong capacity
The hard drive is damaged, or rather there are problems with the firmware. That is, your magnetic disk is not read correctly or written to by a faulty magnetic head. It can only be removed by specialists, do not experiment under any circumstances!
Hard drive hangs
Occurs due to a large number of bad sectors on the hard drive - that is, damage to the surface of magnetic disks. The condition can be checked by reading the chapter described above.
If the test shows a positive result, but the computer is slow to open folders, then try. If it doesn’t help, then the problem most likely lies in the small volume or weak processor.
Recovering data from a hard drive
There are no programs for hard drive recovery, but there are many for recovering data from a hard drive. I won't describe them. I will describe only one method that the user can use at home. Reasons for using this program: many bad sectors and files cannot be opened, deleting necessary data, . Under these program conditions, R-Studio can help you. More details in my article .
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