Learn how to solve any Computer boot issues | non system disk or disk error

How to solve computer boot problems

Why does the boot errors message appear? Why does the computer not boot and show non-system disk or disk error messages? Why is the computer not reading the hard disk? The hard disk is not working and sounding, why does the hard disk not appear after connecting it to the computer, repairing the hard disk, a program Hard disk repair, is there a program to repair a damaged external hard disk? And other questions are what will be included in our topic today, dear fans, followers and fans of the Electronics Professional Space Blog.

- Title of the subject - to solve the problems of take off

1- Check the Bios settings

2- Examine the hard disk jumpers

3- Conflict in devices

4- Hard disk and data power cable

5- Diagnosing the hard disk using some programs

6- Examining the hard disk in another computer

7- Checking the hard disk's physical components

To understand the problems that make the computer boot up is not possible, we must study the hard disk and find out its relationship with the motherboard as well as with the Windows operating system, by analyzing the results (malfunctions) to find out the reason behind them and thus obtain appropriate solutions.

No Windows OS (missing system):

This malfunction is one of the most common malfunctions resulting from a problem at the hard disk level. After pressing the Power on button directly on the computer, the processor or the so-called CPU performs a so-called Power on self test using the BIOS, meaning a preliminary test to ensure the safety The primary voltages, as well as the readiness of the computer-accompanying devices such as keyboard, mouse, disk reader, hard disk and other necessary components. This process is accomplished, of course, by implementing the instructions stored in the ROM memory, which is called the BIOS, and of course during this process, i.e. when examining the components of the computer to identify that everything is ready before starting the Windows boot process, if the BIOS encountered that the boot files or the so-called boot files in it A problem means either corrupted or not present, then here, therefore, he will not be able to find the Windows operating system to do the boot process, then a message appears stating that there is a problem with the boot files, or simply the known message: Non-system disk or disk error may appear and thus (the problem of the computer not booting up and the screen appear Black).

Question: What should we do in this situation?

Very simple, just follow me and make sure of the following:

1- Check the CD-ROM reader and make sure that there is no CD-ROM inside it. Know why? Because if there is a CD-ROM inside the CD-ROM reader and in conjunction with that, the BIOS settings are set to the fact that the first component of the boot is the CD-ROM reader, then the processor will try With the help of the BIOS, booting from the CD-ROM or the CD-ROM in the reader instead of the hard disk that holds the operating system and thus will not find the boot files and boot, which results in the error message ntldr is missing or simply a non-system disk or disk error. Thus, remove any CD if any. Inside the CD reader and restart the device.

2- Ensure that there is no floppy disk in the floppy disk drive. The same thing about the CD that we mentioned in the above paragraph will happen with floppy disks. If one of them is found in a floppy disk drive, this will definitely prevent Windows from booting, especially since the BIOS, which is called the I / O system, is set by default to boot from the floppy disk first, but In recent times, the latter has become a bypass, as it has been replaced by USB keys.

3- Ensure that no USB key is connected to one of the USB ports, so that this process makes the computer not read the internal hard disk or that the expression does not boot from the Windows system on the hard disk by directing it to the USB key that does not contain Except for personal information, for example, that has nothing to do with the boot files, and therefore it must happen and you forgot the USB port in one of its ports, then remove it, then restart your device.

If all the steps that we mentioned above have been taken, i.e. making sure that there is no CD, floppy disk, or USB key in your device, the same problem remained, i.e., the hard disk boot error still does not happen and the same previous message still appears, which generally means (boot error) Then you should move to the next step, which is to check the hard disk and ensure its safety, by following the following:

1- Check the Bios settings

 Check the BIOS settings after entering it, to make sure that it recognizes your hard disk, and if it is not recognized, you just have to set the BIOS to the auto-detect option, that is, automatic identification so that it can identify your hard disk and thus the success of the boot process and load the system Windows.

2- Checking Jumpers

Hard disk jumpers are of very great importance as they determine the behavior and rank of the hard disk. There are three options on the hard drive jack:

- Master mode

Slave Mode

CS is short for Cable Select

Single

Please focus with me until you fully understand the principle of making jumper or jumpers.

* The first case: If we have one hard disk on the computer and of course it contains the Windows operating system, then we must put the Jumper on Single mode so that the BIOS software can detect it and boot from it.

 * The second case: If you have two hard disks in your computer, one with the operating system and the other containing your personal information, in this case you must put a jumper on the Master option for the hard disk that contains the operating system and put another jumper on the Slave selection for the second hard disk Which does not contain Windows, so there will be no problem during booting because the settings are fine. And if you do the opposite, the computer will try to boot from the hard disk that does not contain the operating system, i.e. the second hard disk, and thus the boot failed and the appearance of the non-system disk or disk error message and (the problem of the computer not starting and the appearance of the black screen).

* Regarding the cable select, it is almost the same for the second case, except that there is a slight difference, which is that we put a jumper on the CS position for the two hard disks together.

Do not worry my dear, you may be surprised and say, and how does the processor or the BIOS say to know which disk contains the operating system?. Slave. If you notice the fang or the cable for delivering the harden to the motherboard, you will find that it consists of 3 connectors, the first remote is connected to the motherboard, the second is Slave and the third is the Master. Certainly, it will be understandable after this explanation.

3- There is a conflict in the devices

 Perhaps the reason for the computer to not boot up and the appearance of HDD error messages is due to the hard drive being linked to another device on the same pipe or cable. Remove that device or secondary hard disk, as some devices may stop the work of other devices that share the same cable with them, then restart the computer if it works for you, the reason is that secondary device, and to avoid falling into the same problem again make it Special cable. .

4- Connecting the hard disk to the data power cable

In order for the hard disk to work in its normal conditions, it needs to be supplied with electrical current via a power cable, in addition to the process of exchanging data between it and the computer that requires linking it to the data cable, and thus you must make sure that they are connected correctly, and of course you can try more than one to make sure that the problem is not From the cables.

5- Diagnosing the hard disk using some programs

 Of course, when you are sure of the methods that we have mentioned above, you can go to use the diagnostics that your device provides for you or simply use some programs specialized in that, for example.

- HDD regenerator program

Partition Magic

And other programs.

6- Examining the hard disk in another computer

This point determines whether the problem exists or not, and is based on

Removing the hard disk and trying it in another computer. Of course, knowing the second computer on the hard disk does not necessarily mean it is 100 percent safe because it may recognize it despite a problem with the boot files or the MBR. After all, what must be done after this process is to conduct a thorough examination of the hard disk using a powerful antivirus to ensure its safety, and then return it to the original computer and try again.

7- Checking the hard disk's physical components

In this important and last step, you should make sure that the hardware components of the hard disk are intact. If there are ticking sounds or the like, this is evidence of a malfunction in one of its physical components, which are as follows:

Magnetic disks

- Magnetic drive

Headers for reading and writing

- Hard Disk Motherboard

I advise you to review this topic in order to know more about the physical components of the hard disk

Detailed study of the hard disk and images of SSHD, SSD, HDD

So, my dear, we have reached the end of this topic and I sincerely hope that it will impress you, and of course talking about the problems of castles and hard disk are boundless. But for those who wanted to search more to enrich their information, here are these questions that may save you the trouble of searching and gain time:

- HDD regenerator program

Why does the computer not read the internal hard disk?

What is the best program to repair a damaged hard disk?

What is hard disk?

How is the hard disk repaired?

How is the hard disk installed in the computer?

What is the best hard disk repair program?

What about hard disk prices?