Bios not found what to do. No bios file found what to do

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Instructions

Open your computer's BIOS. To do this, press the power button or reboot. Immediately after sound signal press DEL key. You can press it several times - modern computers They load so quickly that it’s difficult to catch the right moment, so feel free to click and the BIOS will open. On some motherboard models, the button to enter the BIOS settings may be F2, F12 or F10 - this information is in the instructions, as well as on the bottom line of the boot screen. If everything is done correctly, the system setup menu will appear on the screen.

Find the factory reset menu. Look for the words Load fail safe defaults or Load Default settings. Navigate through menu categories using the arrow keys on your keyboard. Press the Enter button when you find the appropriate settings item. This will reset all changes, which means everything possible errors BIOS will be fixed.

Find the Save & Exit menu and press the Enter button. A message will appear on English, which will ask you to confirm the changes. Press Enter or Y to save your changes. The computer will turn off and boot with new “starting” settings. During the startup process, a message may appear indicating that you must press F1 to continue loading. Press this key and continue starting your computer.

You can reset everything BIOS settings by removing the battery. This alternative way, which helps in cases where the computer does not allow you to enter the system settings or does not boot at all. Disconnect all cables. Take a Phillips screwdriver and a flat head screwdriver.

Remove the screws from the back panel system unit. Remove the side cover. Find a round, shiny battery about one and a half centimeters in diameter. The socket in which this battery is located has a protrusion-lock. Pry up this tab with a screwdriver and pull out the battery. Leave everything for 10-15 minutes - without power, all settings will be reset, and this will correct errors in the BIOS.

Install the battery into the motherboard, observing the polarity; The side with the inscription should be on top. Connect all devices to the system unit, connect the power cable. You can turn on the computer.

Software replacement motherboard allows you to improve your computer's performance and add new features related to its configuration. This process should only be carried out after careful preparation and reading of the necessary instructions.

You will need

  • - Firmware file;
  • - program for firmware.

Instructions

If you have already updated the BIOS and want to return the old version, then download the required firmware. To do this, it is better to use the official website of the manufacturer of the motherboard you are using. If you work with a laptop, then visit the website of the developer of this model mobile computer.

Download the firmware program and the required software version from there. If you did not find the original BIOS version, then download more new firmware, which differs minimally from the initial one. Typically, websites indicate the release date of the firmware.

Before starting the software change process, reset the BIOS settings. To do this, open this menu after restarting your computer. Select Use Default Settings or Reset CMOS and press Enter key. Confirm the operations by pressing the Y key.

There is probably no need to explain how unpleasant the situation is when the user turns on the computer or laptop to boot and instead of the usual start, the system, for no apparent reason, writes on the screen Operating System not found. This comes as a real shock to many users. How so? Yesterday everything worked... We’ll now see what could have happened and how to correct this situation.

What does the Operating System not found error mean?

If you look at the message itself, it is not difficult to translate it as “operating system not found.” But the problem is that the user is absolutely sure that it exists. But the computer system does not share such confidence with the user, since it simply does not find the components responsible for loading the system.

In general, such situations most often occur, for example, when the user removed the hard drive and replaced it with a new one. Maybe the hard drive just failed, but you never know.

Possible causes

If suddenly such an incident occurs, and the system constantly displays the message Operating System not found (Windows 7, 8, etc.), first of all, do not panic. To get started, just check to see if a flash drive is inserted into your computer or laptop, and in the BIOS settings the USB device is the priority for booting.

If the hard drive was removed or replaced with a new one (this applies to desktop computers), it may very well be that when reconnecting it, the corresponding cables were connected incorrectly or loosely. Let's see what can be done in such a situation.

Basic BIOS settings

The most in a simple way changes BIOS settings It may be possible to reset all settings to factory defaults (Default). Any BIOS version has this setting.

As a last resort, you can simply change the boot priority in the section Boot Device Priority or Boot Sequence, and install the hard drive as the first (main) boot device (boot device).

It also happens, however, that the hard drive is detected in the BIOS, but booting still does not occur, and the system issues the Operating System not found warning again and again. What to do in such a situation? First, see if there is a model opposite hard drive It signals that the device in the system, although present, is simply disabled or not used.

As a rule, in most BIOS versions on the right there is a special help field for the device (Specific Item Help), which contains a keyboard shortcut that allows you to enable or disable any component. The most likely combination is Shift + 1. But here everything depends on the manufacturer (combinations may be different).

Switching hard drive operating modes in BIOS UEFI

On the other hand, if the Operating System not found warning appears on a laptop where removing the hard drive is quite problematic, you should pay special attention to the mode settings work hard disk. As an example, let's look at the settings the latest system UEFI, although they can be used in other versions without problems.

In general, there are two main modes in a SATA configuration: AHCI and IDE. During the initial installation of the OS, as well as in the default settings, it is enabled AHCI mode. When you switch to the IDE, no matter how hard you try, you will not be able to install Windows on the hard drive.

The same applies to moments when users, at the end of the installation process, either unknowingly or accidentally turn on the IDE mode. As is already clear, the system displays the line Operating System not found. By the way, even if at the moment install another fully functional “screw”, without changing the SATA settings to the initial ones, it will also not work.

Therefore, we should immediately advise users to change such settings only as a last resort, when it is really necessary.

Recovering the Windows bootloader

There are also frequent cases when the message “Operating System not found” appears when there is damage Windows boot loader, which is associated only with errors on the hard drive, for example, due to incorrect shutdown. In this case, as is already clear, the entire system can “fly off”.

In such a situation, you can try to restore the bootloader, and at the same time check the system disk or partition for errors. To do this, it is always advisable to have the original installation disk or system recovery disk at hand.

Here you will need to set optical drive in the BIOS as the first priority boot device, after which use Note that in this option there is no question about Windows recovery from control point. This still won't help, and the Operating System not found warning will appear again.

Here you need to use boot recovery mode or command line, which is preferable. In it, you need to enter two main commands in sequence: bootrec.exe /FixMbr and bootrec.exe /FixBoot, after each pressing “Enter”. If this sequence does not help, you can also add the bootrec.exe /RebuildBcd command.

Before performing such actions, it is strongly recommended to check for errors and automatically correct them ( chkdsk commands/f /r or chkdsk /f /x /r). You can also use the chkntfs /x c checker: subject to availability file system NTFS in system partition(drive "C")

If all else fails

However, if all the above methods for correcting the situation do not help, then you should definitely diagnosis of hard disk. But if it’s not a problem to remove it, then you’ll have to go to the nearest service center or workshop and do not try to remove it yourself.

As is already clear, if the hard drive falls apart, there’s nothing you can do, you’ll have to replace it with new hardware, and then install the operating system again. You can, of course, try the utility on it, but it is quite difficult to guarantee one hundred percent success.

In the section for the question Help please, I can’t enter the BIOS! given by the author Nikolaj Fafaga the best answer is Pull the battery out of the mother for a minute.
Ruslan Asanov
Enlightened
(21998)
Was the wire disconnected at this time?

Reply from 22 answers[guru]

Hello! Here is a selection of topics with answers to your question: Please help, I can’t enter the BIOS!

Reply from Neurologist[master]
pull the battery and go through another computer to the website of your motherboard manufacturer. go to downloads on this site and download your BIOS file. put it on a flash drive. disconnect the hard one. plug it into another computer, but be sure to turn on NtiVirus in real time. send only the most important files!! ! Do not transfer any games or programs. format your hard one. put it back into your computer. insert the battery. insert flash. and boot from it. in your case it will load itself. if not, press F3 (as in your 2nd photo) to scan!! ! If there is nothing, then you need to go into instal flash when you boot the computer. A window with your motherboard’s logo should appear and press the corresponding button. it will be written there. and find your flash drive there and find the downloaded file. download it. The BIOS will be installed and install new Windows. You most likely grabbed a tasty virus because of some game or program. be careful.


Reply from Legal capacity[guru]
BIOS - No BIOS file foundwww. cyberforum.ru/bios/thread789137.html


Reply from scattering[guru]
Decided to reflash the BIOS and don’t understand what you’re doing? ? So we got it! Now flash it again if you can do it.


The computer boot is interrupted at the very beginning and the message appears on the screen: “No bootable device – insert boot disk and press any key" - "No boot device found." What is the reason? How to fix a problem like this? In our article we will briefly answer these and other questions.

When the computer works normally, we don’t feel much desire to understand “how everything works on it.” However, when a computer malfunctions, it stops loading, and “mysterious” error messages appear on the screen and we are unable to call a computer specialist for help, then we are forced to look into the “inner world” of the computer in order to return it to working condition. Let's understand what the error message “No boot devices found” means.

What does it mean and how to fix the error “No boot device»?
The computer has a built-in software, operating independently of the operating system. This software is built into the flash memory of every motherboard and is called the BIOS (Basic Input Output System). Its tasks include loading devices and various computer components. After polling and testing the computer components, the BIOS transfers control to the operating system. It is the BIOS that tells us by displaying a warning that the boot device was not found. This occurs when the BIOS cannot boot operating system from any media on the computer. A “boot device” can be media such as a hard drive, CD, DVD, floppy disk, or flash drive that can contain boot information or an operating system. If this device is missing, turned off, or there is a problem with the operating system, then the above error message appears. Make sure that in the BIOS menu the boot device is selected hard section disk or any other device that you plan to use as a boot device.

Now we will tell you about three possible reasons, which can lead to a similar error.

File system problems
The most likely reason that the BIOS is unable to detect the boot device is that the operating system installed on the hard drive has failed. This may happen due to a virus attack, accidental deletion system files or random compression system disk, i.e. any reason due to which the existing operating system settings may be disrupted. In this case, when the system starts, the operating system is not detected and you get this message about the error.

Solution:
The only way out in this situation is to download from the installation Windows disk, followed by restoring or reinstalling the operating system. In case of recovery, you will be able to save all the data on the restored partition; in case of reinstallation, the data will be lost.

Hard drive disabled
In rare cases, it may happen that the BIOS cannot detect the hard drive as a boot device because it may have been physically disconnected from the motherboard. This can happen if the system unit has been damaged by a fall or shock. To make sure that this is really the case, go to the BIOS settings by pressing the corresponding key when starting the system (F1, F2, Del, other options are possible).

Solution:
In this case, you need to open the computer system case and check whether the cable from the motherboard to the hard drive is properly connected. If it is disconnected, then simply connect it and the problem will be solved. In the case of a laptop, you will have to do the same. If your laptop or desktop computer are under warranty, it is better to give the computer to the service center specialists.

Hard drive damage
Physical damage to the hard drive or bad sectors may cause the error to appear. The hard drive can be damaged as a result of power surges, dust, shock, etc. If the hard drive is damaged, it is not detected by the BIOS.

Solution:
In this case, you may have to replace the hard drive. The hard drive must be tested for bad sectors. If its functionality is restored, it can be used as a secondary medium.
If none of the above measures help you, then you need to contact computer help to the experts. At least your conscience will be at peace because you did everything you could. In addition, we do not recommend that you open and repair a computer that is still under warranty. It is better, as mentioned above, to take it to the service department. Since if it turns out that any element needs to be replaced, you will not have to buy and replace it with your own money.

The most likely cause of this failure is usually problems with the operating system, which was damaged as a result of a virus attack or damage to system files. In most of these cases, you will have to reinstall the operating system. To avoid such problems, it is recommended to install antivirus software that effectively prevents virus-induced system crashes.

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