What Should I Do If My Computer Cannot Read The Hard Drive? Common Causes And Solutions Revealed

The computer hard drive suddenly cannot be read. This experience is really frustrating.

Precious photos may become inaccessible because the hard drive is "offline". Important documents may also become inaccessible because the hard drive is "offline". Data collected for many years may also become inaccessible because the hard drive is "offline".

I have encountered a similar situation once. That time I planned to upgrade the system of an old computer. However, when starting up, a prompt appeared saying that the hard disk could not be found. At that moment, my heart suddenly sank and thumped.

Don't panic, most of the "hard drive encounters no disk reading" faults actually have traces that can be traced and can be solved by yourself in a short amount of time.

Today, based on my own experience, I will sort out the troubleshooting steps from the simplest to the most complicated for you, just like the "look, hear, ask and feel" implementation of traditional Chinese medicine, looking for the "root of the disease" one by one, which is to help you find the "root of the disease".

Step 1: Check whether the "hardware handshake" is normal

When the computer fails to recognize the hard disk, the first thing we have to question is the most basic physical connection.

It's like the electrical appliances at home. If the plug is not plugged in properly, no matter how advanced the equipment is, it cannot be used.

As for the mechanical hard drive or solid-state drive built into the desktop computer, you have to open the side panel of the chassis to check the two wires connected to the hard drive; first, there is a SATA data cable, which is responsible for transmitting data; and then there is another SATA power cable, which is responsible for power supply.

Both wires may be loose or have poor contact.

After the power is turned off, the solution is to re-plug and unplug the two wires each time to ensure that they are tightly connected to the hard drive and the interfaces on the motherboard.

If it is a built-in hard drive in a laptop, it is generally plugged directly into the motherboard through a fixed interface. It is not recommended for ordinary users to disassemble it by themselves, otherwise other components will be damaged.

But if it is external Mobile hard drive , this matter is much simpler.

Try changing a USB data cable, or changing the one on the computer USB interface Try it.

Generally speaking, it will be more stable if the mobile hard disk is connected to the USB interface on the back of the computer. The reason is that the power supply provided by these interfaces on the motherboard is more sufficient.

Sometimes, if you change the interface, the hard drive will "magically" appear.

Step 2: Listen to the "sound" of the hard drive to see if it is healthy

If there is no problem with the connection, then you need to pay attention to the "health status" of the hard drive itself.

Here is a little trick: listen to the sound to identify the "disease".

For a traditional mechanical hard drive, you can hear a slight motor starting sound when power is turned on, and a "click" sound when the magnetic head passes over it. This is normal.

If you hear a continuous, regular "click-click" sound, or a sharp friction sound, it is most likely that the magnetic head or motor has been physically damaged. This is what is commonly referred to as physical damage to the hard drive.

Under such circumstances, forcibly trying to repair or read will most likely aggravate the damage. The most prudent measure is to cut off the power supply immediately instead of trying to power on again, and also consider seeking professional data recovery services.

For further confirmation, we can perform a "cross test".

Install the suspected problematic hard drive on another computer that has been confirmed to be in normal working condition (it will be very simple if it is a mobile hard drive) and see if it can be recognized.

If the problem still cannot be read after replacing the computer, then it is basically certain that this is a hardware failure of the hard disk itself.

If it can be successfully recognized by the newly purchased computer, then the problem is most likely to occur on the motherboard of the computer you used in the past, or in the BIOS settings, or in the system driver. This will make the direction of our investigation clearer.

Step 3: Find clues in "Device Manager"

If the hard drive's physical connection and body seem to be fine, then software "communication" barriers may be the culprit.

In the Windows system, there is a device manager, which is used to view the status of all hardware, just like the "Central Intelligence Agency".

You can press the Win and X keys, and then select the "Device Manager" item in the pop-up menu.

Expand " disk drive ” to see if your hard drive is on the list.

You will see several situations: First, the hard disk is listed normally and there is no yellow exclamation mark, which means that the system has recognized the hardware, and there may be a problem with the partition or file system.

2. The hard disk appears in the list, but it has a yellow exclamation mark or a question mark. Generally speaking, this means that there is a problem with the driver.

Right-click it with the mouse, select "Update Driver", then continue to select "Automatically search for updated driver software", and use the system network to help you find the official driver to complete the related operations.

3. Your hard disk does not exist in the list at all. This may be a deeper problem with the BIOS/UEFI settings, or the hard disk interface has been disabled.

At this time, you have to restart the computer. When starting up, press a specific key. The specific key here is usually Del, F2 or F12. The specific key depends on the prompts given on the startup screen to enter the BIOS/UEFI setup interface. Within the scope of storage device configuration, confirm that the SATA Controller is turned on. This state is Enabled, and your hard drive can be seen in the startup items.

Step 4: Repair the “lost” file system

The hard drive can be recognized, but the drive letter cannot be seen in "This PC"?

It is possible that there is a logical error in the file system. For example, tables such as NTFS or FAT32 that are often used in Windows are damaged.

There is a powerful disk check tool called chkdsk for Windows that can scan and try to fix this type of problem.

How to use it:

First, open the command prompt as an administrator. The operation method is also using Win +

Assuming your hard drive letter is "D:", the command is:

chkdsk D: /f

The /f parameter here stands for "repair".

If the system prompts that the volume is in use and cannot be locked, it will ask if you want to check it the next time the system restarts. Just press "Y" to agree.

After restarting, the system will automatically run a scan and repair before entering the desktop.

In addition, there are some third-party disk management tools with good reputations on the market, such as DiskGenius and Partition Assistant.

Generally speaking, they have a more friendly graphical interface. In addition to repair, they can also perform partition management, data recovery and other related operations. They are a good choice for advanced users.

Step 5: Rescue important data first

Before carrying out any of the above repair actions that may involve writing data, if there are extremely critical files stored on the hard drive, I strongly recommend that you try to get the data out first.

When it comes to data recovery, the earlier the opportunity, the higher the success rate.

If the hard disk only has logical errors, such as a formatted partition that is lost due to accidental deletion, and the computer can still recognize the hardware, it is feasible to use data recovery software.

Personally, I have tried some such software, such as software for retrieving data. They are generally relatively simple to operate. Just follow the wizard prompts to scan, then preview the found files, and then restore them.

One key principle to remember is that when recovering data, never save it directly to the original hard drive. You must prepare another intact hard drive, or a large-capacity USB flash drive as the target drive. This is to prevent the original data from being overwritten and causing permanent loss. This should be kept in mind.

Developing a good habit of regularly backing up data is the most powerful talisman against emergencies like this.

Whether you use a mobile hard disk to copy at a fixed period, or use cloud disks such as Baidu Netdisk and OneDrive to synchronize, you can be in a state of peace of mind and no need to worry.

Step 6: Eliminate software interference such as “viruses”

Finally, we have to consider a situation that is not so common but does exist: the interference of vicious viruses or malware.

There are some stubborn viruses that may destroy the boot record of the disk or encrypt your partition, making the system unable to be accessed normally.

At this time, you must ensure that the anti-virus software installed on your computer is the latest version and perform a full deep scan.

At the same time, check the operating system updates. Windows system updates sometimes cover important disk drivers or security patches. After the update, the problem may be solved smoothly.

If you have a system installation disk or USB flash drive on hand, you can also try booting from the outside to see if you can successfully access the data on the hard disk. This method can help you determine whether the problem lies with the system you are currently using.

Computer hard drives are "out of action". This situation is really difficult. However, it needs to be patiently investigated step by step according to the ideas of "from outside to inside" and "from soft to hard", so that most problems can be solved.

It starts with the extremely simple operation of plugging and unplugging the data cable, then checks the status of the driver, then repairs the disk, and then moves towards the final data recovery, and finally does external testing. In this way, this complete process itself is an experience for and in-depth understanding of computer hardware knowledge.

Even so, if you have tried all the methods one by one, but in the end there is still no movement on the hard drive, and the data is extremely critical to you, then it is the wisest decision to seek professional assistance as soon as possible.

After all, hard drives have a price, but data is priceless.

I hope this experience can help you resolve emergencies and bring those critical and important data back to you again.