The BIOS has been updated and Windows itself will not start. BIOS does not start: the main causes of the problem. What causes the BIOS firmware to crash?

BIOS is the basic input and output system that stores special algorithms necessary for the proper functioning of the entire computer. The user can make certain changes to it in order to improve the performance of the PC, but if the BIOS does not start, this may indicate serious problems with the computer.

There is no universal way to solve this problem, since, depending on the cause, you need to look for a solution. For example, in some cases, in order to “revive” the BIOS, you will have to disassemble the computer and carry out some manipulations with the hardware, and in others, it will be enough to simply try to enter it using the capabilities operating system.

Reason 1: Problems with components

If, when you turn on the PC, the machine either does not show any signs of life at all, or only the indicators on the case are lit, but there are no sounds and/or messages on the screen, then in most cases this means that the problem lies in the components. Inspect these components:

Physical damage to important computer components occurs, but the main reason for the inability to start a PC normally is severe dust contamination of its insides. Dust can become lodged in fans and contacts, disrupting the flow of voltage from one component to another.

When disassembling the system unit or laptop case, pay attention to the amount of dust. If there is too much of it, then do “cleaning”. Large volumes can be removed with a vacuum cleaner operating at low power. If you use a vacuum cleaner while cleaning, be careful as you may accidentally damage the inside of your PC.

When the main layer of dust has been removed, arm yourself with a brush and dry wipes to remove the remaining dirt. It is possible that contamination has entered the power supply. In this case, it will have to be disassembled and cleaned from the inside. Also check the contacts and connectors for dust.

Reason 2: Compatibility issues

In rare cases, the computer and BIOS may stop working due to incompatibility of any component that is connected to the motherboard. Usually it’s quite easy to figure out the problem object, for example, if you recently added/changed a bar random access memory, then most likely the new bracket is incompatible with other PC components. In this case, try starting the computer with old RAM.

Less commonly, it happens when one of the computer components fails and is no longer supported by the system. It is quite difficult to identify the problem in this case, since the computer does not start. Various sound signals or special messages on the screen that the BIOS gives can be very helpful. For example, by looking at the error code or beep, you can find out which component is having a problem.

In the case of incompatibility of certain components on the motherboard, the computer often shows signs of life. The user can hear the operation of hard drives, coolers, and the startup of other components, but nothing appears on the screen. Most often, in addition to the startup sounds of computer components, you can hear some extraneous signals produced by the BIOS or some important PC component, thus reporting a problem.

If there is no signal/message or they are illegible, then you will have to use this instruction to find out what the problem is:

If you completely assembled the computer (without finding a problematic element), connected all the devices to it and it began to turn on normally, then there can be two explanations for this behavior:

• Perhaps due to vibration and/or other physical impact on the PC, the contact from some important component has come out of the connector. In the actual disassembly and reassembly, you simply reconnected an important component;
• A system failure occurred due to which the computer had problems reading a component. Reconnecting each element to the motherboard again or resetting BIOS settings solve this problem.

Reason 3: System failure

In this case, the OS loads without any complications, work in it also proceeds normally, but when you need to enter the BIOS, you are unable to do anything. This scenario is extremely rare, but it does happen.

The method for solving the problem that has arisen is effective only if your operating system boots normally, but you cannot enter the BIOS. Here we can also recommend trying all the login keys - F2, F3, F4, F5, F6, F7, F8, F9, F10, F11, F12, Delete, Esc. Another option is to use each of these keys in combination with Shift or fn(the latter is only relevant for laptops).

This method will only be applicable for Windows 8 and higher, since this system allows you to restart the PC and then turning on the BIOS. Use this instruction to perform a reboot and then start the basic input and output system:

In case you have an operating room Windows system 7 and older, and also if you do not find the item "Firmware and UEFI Settings" V "Advanced options", you can use "Command line". Open it using the cmd command in the line "Run"(called by key combination Win+R).

You need to enter the following value in it:

shutdown.exe /r /o

After clicking on Enter the computer will reboot and enter the BIOS or offer boot options with entering the BIOS.

Typically, after such an entry, the basic I/O system will boot without any problems in the future if you are already using key combinations. If it is not possible to re-enter the BIOS using the keys, it means that a serious failure has occurred in the settings.

Reason 4: Incorrect settings

Due to a failure in the settings, the hot keys for entering may change, so if such a failure occurs, it would be wise to reset all settings to factory settings. In most cases, everything returns to normal. This method is recommended to be used only in cases where the computer boots without problems, but you cannot enter the BIOS.

BIOS is the most important component of a computer, the activity of which is aimed at setting up the operation of the equipment, checking its functionality, launching the operating system, and more. One of the most unpleasant situations that a user may encounter is when the BIOS refuses to start.
Let's imagine a situation: suppose you decide to reinstall Windows on your computer, but in order to run the installation program, you need to enter the BIOS. You have made more than one attempt to enter the BIOS, and all of them were unsuccessful.

Another situation: when the computer starts, the user first sees the BIOS interface, after which the computer proceeds to load the operating system. In some cases, the user may not see any image at all, that is, neither the BIOS window nor anything else.

Reason 1: Wrong key (combination)

First of all, you should question the correct hotkey you are using to enter the BIOS. Unfortunately, you can only find out which key in your case is by experience, that is, it was not possible to enter the BIOS using one button, next time you should try another.

The process of entering the BIOS is as follows: you reboot the computer or simply turn it on and at the very first stage of turning it on, you begin to repeatedly and quickly press the BIOS hotkey.

There are a huge number of options for entering the BIOS (this is especially true for laptops), but in most cases you will find one of the following keys: F1, F2 and Del. If not a single key helps you enter the BIOS, try Googling the model of your motherboard (for a desktop PC) or laptop model on the Internet to find out how to enter the BIOS for your device.

Reason 2: Non-working or unsupported keyboard

And although in rare cases the user has the opportunity to enter the BIOS without a keyboard, in 95% of cases it is impossible to do without it.

Needless to say, a computer keyboard must be in good working order? Be sure to test the keyboard's functionality by logging into Windows or connecting it to another computer.

If everything is fine with the keyboard, then perhaps the problem is that the keyboard is not supported by the BIOS. As a rule, a similar problem is observed among users of old computers (laptops), and if you use a wired or USB keyboard, then this may well be the case.

If you have wireless keyboard, accordingly, we will need to use a wired one to eliminate the possibility of such a reason. Especially older BIOS versions may not support the USB keyboard interface, but to check this, you will either need to connect an old keyboard with a PS/2 connector or purchase a PS/2 adapter for a USB keyboard.

Reason 3: USB port not working

The port to which the keyboard is connected must be working. Try connecting the keyboard to a different port and try entering the BIOS again.

Reason 4: conflicting devices

One of the computer devices may have malfunctioned, resulting in a conflict, which is why you cannot enter the BIOS.
Try disconnecting everything you can from the computer: drives, hard drives or solid-state drives, all USB devices connected to the motherboard, PCI cards. If there is a built-in video card, then disable the discrete one, and then try to enter the BIOS again. If the attempt is successful, connect one device to the computer at a time to find out what is conflicting. Having identified a problematic device, it is precisely this device that you will need to deal with (it is better to take it to a service center for diagnostics).

Reason 5: Computer malfunction

If, when you turn on the computer, the BIOS starts making sounds, but does not want to start, you should listen to the signals and record them. Often the BIOS uses such signals to make it clear what went wrong. There are a lot of tables on the Internet that decipher sound signals for different BIOS versions, using which you can quickly understand the cause of the problem and begin to fix it.

Reason 6: Problematic BIOS settings

As a rule, a similar cause of the problem occurs when the user makes changes to the BIOS. In this case, you should try returning the BIOS to factory settings. As a rule, in most cases you will need to look under the system unit case, where on the motherboard you can find a special switch (CMOS jumper), which is set to position 1-2. To perform a reset, just move the switch to position 3-4 for 15-30 seconds, after which you can return it to its previous position.

Reason 7: Problems with the motherboard

The most unfortunate reason for this problem is because motherboard- This is practically the entire computer. If you suspect a problem with its operation, you can carry out a short diagnostic procedure.

First of all, you will need to inspect the motherboard itself: is there any oxidation, are the capacitors swollen. Any external changes they talk about its malfunction, which means that all this needs to be eliminated. If there is oxidation, it must be carefully erased with an eraser. If the capacitors are swollen, they should be soldered with new ones.

If visually with motherboard everything is ok, you should try the following:

1. Disconnect your computer from the network, and also remove all unnecessary devices: mouse, speakers, keyboard, any additional devices and cables. As a result, only a network cable and a monitor need to be connected to the system unit.
2. Reset CMOS. To do this, you should remove the battery from the motherboard for a few seconds and then install it back.
3. Remove all cards from all motherboard slots, leaving only the processor and speaker connected.
4. Start the computer and pay attention to the sound: if there is any sound, this tells you that the motherboard is working. If not, then everything is much sadder - she does not respond.

If you have confirmed your guess that the problem is in the operation of the motherboard, you should try to take it to a service center - it is quite possible that a specialist will be able to restore its functionality.

These are the main reasons that affect the BIOS not starting. If you have comments on the article, leave them in the comments.

BIOS is the firmware responsible for the initial loading Windows. It checks the functionality of components and add-ons. The correct loading of the computer and its normal operation (hardware components) depend on it.

It is written on the motherboard, not on the hard drive like the OS. In new devices, the BIOS has been replaced by UEFI, which performs the same functions, but has been improved. Both programs sometimes need to be updated.

BIOS can be updated in several ways

DO I NEED TO UPDATE THE BIOS?

Manufacturers regularly release updates for laptops. It is downloaded from the official website of the company that produced the laptop. It’s more difficult for owners of PCs with their own build. To find files to update, they will have to rely on the motherboard chip data. Any update is also written to the chip, replacing the old version.

It is not difficult to update the bios correctly, but only materials designed for a specific PC model or board should be used. Each motherboard has a strictly defined type of firmware, and installing the wrong version can lead to malfunctions of the computer or its complete inoperability.

BIOS is a delicate program, and therefore it is better to update it only in extreme cases. On a normally functioning PC there is no need to update it. This is due to several factors:

• Flashing bios on an asus or any other motherboard is difficult, the process requires some skills, the process is done through DOS;
• The improvements will not be noticeable, since the differences between the versions are minimal and highly specialized;
• Malfunctions and malfunctions may occur because... the old version was tested more thoroughly than the new one;
• When carrying out work, the power must not be turned off, otherwise the device will stop loading.

But sometimes the BIOS needs to be updated. If you regularly encounter one or another error in operation, go to the device manufacturer’s website and check whether such an error has been resolved in the new firmware version. More often, such a list is available on manufacturers’ websites. If such a problem is really solved in the new version, it makes sense to update the bios on the laptop.

Another good reason to flash the BIOS is the installation of new equipment. If you purchased a new processor that appeared after the release of your motherboard, then it will not be supported by your BIOS. In new firmware versions, manufacturers add support for new types of processors, and therefore you will have to download such a file and flash the firmware.

You should update the BIOS as a last resort. But even then, before upgrading, study the characteristics of the new version and find out whether the problems are solved. Based on this, decide whether you need to update the bios.

Find out the current version by pressing Win+R on your keyboard. In the window that opens you see msinfo32 for 32-bit OS. Click Run. A window will open listing the hardware and OS characteristics of the device. Find the one you need among them.

Sometimes a notification appears that the bios mode is outdated. This means that the BIOS operating mode is outdated; it still works in real mode, not protected mode. Firmware may not help solve the problem, but it is not serious and does not need to be fixed.

UPDATE METHODS

The update method depends on the computer manufacturer, motherboard model, etc. Most often, each manufacturer has its own instructions for flashing. You can get acquainted with it on the official website of the company.

On all modern motherboards, you can update the bios on your computer using any of the above methods. But it is better to choose the latter, as it guarantees a minimum number of errors.

UPDATE ALGORITHM

Update bios asus or any other modern laptop, you can use any of the three described methods. They have their own nuances, but when carrying out the process using utilities, they are still not complicated.

FROM DOS

A difficult option with high risks. To update bios to windows computer 7 do the following:

1. Find out the model of your motherboard;
2. Download the required firmware version from the manufacturer’s official website;
3. Sometimes there are several of them. In this case, choose the one that is designed for installation in DOS mode;
4. Create a bootable USB flash drive with BIOS, DOS and an additional utility (it can be downloaded from the manufacturer’s website or included in the archive along with the firmware);
5. Install the USB flash drive and restart the computer;
6. Specify the media containing the motherboard bios firmware;
7. After the flashing is completed, reboot your PC.

There are no more precise instructions, since they vary for different PCs and boards. Detailed instructions find on the manufacturer's website. But using this method is not recommended.

FROM WINDOWS

It's easy to flash the bios on a laptop this way. Errors rarely occur. Popular method.

1. Download the firmware utility. It is different for each manufacturer. Program for updating bios asus – Asus Update, MSI – Live Update, etc.;
2. Install the program;
3. Run;
4. Find the online function to search for new firmware. In different programs it is in different groups of commands;
5. From the list of firmwares, select the required one;
6. Activate download;
7. After downloading, run the flashing and follow the instructions of the program.

Firmware for bios asus, MSI and others in this way is also safe because the program itself selects the appropriate firmware version. In addition, the intuitive interface will help even a non-advanced user to install the firmware.

FROM BIOS

It is possible to reflash the bios on a laptop from the firmware using pre-installed utilities. This is a complex method, as it differs depending on the motherboard chip model, manufacturer, etc. To update the bios on a gigabyte motherboard, run the pre-installed @BIOS utility; other manufacturers have other programs. Such programs are similar to the utilities used in the previous method, but are not as convenient. They also work with them - they find required file online and launched.

More often, this method is used when the computer breaks down, when it is impossible to log into the OS, because... PC won't boot.

Many users do not know the answers to the question. They don't know how to update the BIOS. Don't think about updating this program- this is supernaturally difficult. Believe me, everyone can figure it out.

The abbreviation of this system when translated into Russian sounds like a basic input-output system.

Why do you need a BIOS?

1. When the computer starts, the BIOS checks the standard hardware and its viability. If any of this equipment burns out, a special sound signal will sound.
2. The program starts boot program, which directly loads Operating System.
3. Provides interaction between the OS and various peripheral equipment.
4. Gives the user the ability to configure PC hardware components.

Do I need to update the BIOS and why?

Updating this program is a deeper process than conventional computer programs. This implies a short algorithm of changes. Basically, this is correcting the malfunction of some rare components of the system or adding support for the latest processor models.

If the computer works without problems, it is better not to deal with this program. And it's not worth updating. Differences between the past and new version you won’t see, and on the contrary, the update can generate unexpected problems for your PC. Most often they occur when the previous version was tested more thoughtfully than the new one.

The update should only be launched for your motherboard model. If you try to update the BIOS designed for a different model, it may bring you a number of unpleasant difficulties and problems.

But there are times when updates are necessary, and sometimes urgently:

1. The motherboard requires the installation of a new processor, which the updated version can provide. In this case, it is necessary to update the program.
2. Need to connect HDD of a size that is not supported by the old version of the program.
3. It is necessary to activate additional functions of the chipset (a set of chips that are designed to work together to provide a set of various functions) that are not included in the original version.
4. It is necessary to replace the outdated OS on the computer.
5. In case you plan to overclock your computer.
6. The system functions slowly or incorrectly due to errors in the BIOS code.
7. The version you have installed is broken, which is why the system does not function partially or completely.

What does a BIOS update do?

Updating the motherboard BIOS, as you already understood, is done mainly to ensure that new processors and new memory, which are released very often, are supported by the motherboard installed on your computer. Because of this, updating the program is sometimes simply necessary.

Is it worth updating the program unnecessarily? Is it possible to update it constantly without thinking about the consequences? Programming professionals advise against doing this.

How to view the current current version of your system program?

• The fastest way to find out the current version is to use command line on your computer.

• Enter: Wmic bios get smbiosbiosversion. A window will open in which you will see the current version.

After you have found out the information you need, you should go to the website of the manufacturer of the motherboard that is on your computer.
There are five most popular manufacturers:

How to update BIOS on a laptop?

Special programs for updating BIOS

Top 3 programs:

• Asus – Asus Update,
• MSI - Live Update,
• @BIOS.

General instructions for the programs:

Let's look at the option of how to update the BIOS from a flash drive:

How to make a bootable floppy disk for updating the BIOS?

The update method from a floppy disk is considered one of the most reliable in terms of security.

After all these manipulations, you need to restart the computer and boot from the floppy disk. Make sure that the disk drive is set as the first boot device in the BIOS. During the reboot, open the BIOS setup menu by pressing the special open keys. We select - Advanced BIOS Features, Boot Sequence, which are sometimes called Advanced, Advanced BIOS Features.

How to update BIOS without battery?

For update purposes, you often need to charge your computer to at least 10%. If this condition is not met, then the message “Power Check Error” will pop up in front of you, preventing you from updating the program.
In order to update it, you need to find out one key. What do you need to do for this?

Windows won't boot after BIOS update

It happens that after an update, Windows stops loading. In this case, you need to start the computer's BIOS. Find the parameters of SATA devices and try to change the operating mode. If the settings are set to IDE, you need to activate AHCI (or vice versa). After this, save the new settings and restart the computer.


And remember that entering this system do not do it unnecessarily, as it may harm your computer! If you still don’t understand or can’t figure out some subtleties, contact a specialist!

Have a great day!

The basic input/output system is the beginning of a computer's electronic life. In the event of a hardware or software malfunction of the BIOS microchip, successful startup of the computing device simply becomes impossible. Despite the extreme degree of reliability of the specified element of the computer system, software failures in the basic microsystem (due to many factors!) still occur. In most cases, the problem “BIOS does not start: what to do?” is resolved by simply replacing the CMOS battery, otherwise it is necessary to apply a comprehensive diagnostic plan, and only after identifying the cause of the problem, carry out a repair (correct!) algorithm of actions, -. details in the article!

Not a short introduction: small BIOS and big consequences...

Indeed, everything depends on a small microcircuit, which contains a set of microprograms in its memory, and in totality is the basic microsystem of a computer! A very rare electronic ailment that occurs in our time is damage to the main BIOS record of the system (not to be confused with temporary data stored in CMOS memory!) - this is a “dead” motherboard. That is, the motherboard becomes completely useless, since it is deprived of a startup control element.

A partial malfunction of the microchip BIOS can be accompanied by an incredible variety of surprises, both hardware and software. In general, the beginning of all computing principles is a small microcircuit with a certain set of programs. The degree of efficiency of the computer you are using directly influences the overall service life of the computing device as a whole depends on how correctly you configure the BIOS. If for you, dear reader, everything written above has become news, then it makes sense to think: “Do I comply with the manufacturer’s critical instructions regarding operating rules?”

Why the BIOS suddenly stopped starting: a little about all the reasons

Let's move on to specifics, because the situation “does not start” can look different:

1. When you press the “on” button, nothing happens - a black screen and silence.
2. The computer turns on, the screen flickers with a black void (not active) - the noise of the fans is heard and the system speaker (BIOS speaker) beeps.
3. The computing device starts, some message is displayed on the screen - the buttons do not respond, except that... the restart works.
4. The system boots too quickly (and safely!), but you can’t get into the BIOS.

There is another interpretation of the problem voiced, when a novice user does not correctly understand what exactly is happening and at the same time wonders how to enter the BIOS in general? Let's start with the last one...

How to enter basic computer settings

Depending on the BIOS version(s), as well as the design features of the computer, access to basic settings may differ radically from the methods that are considered standard.

For example, in most PC modifications, entering the BIOS is done by pressing the “F2” or “Delete” function button. Moreover, the activation of one of these buttons is carried out immediately at the moment of starting the computer system at its initial stage. By the way, there is a special technique for calling the BIOS main menu - repeatedly pressing the corresponding button with an interval of two clicks per second.

There are other “tactile schemes” for entering the BIOS - some manufacturers equip the devices they produce with special mechanisms, push-button or lever type, when activated, the user enters the service menu of the base microsystem. However, there are also more exotic buttons - touch ones. However, the essence of the listed keys and service gadgets is the same - calling the BIOS Setup menu.

As for the “speed resistance” to entering the basic computer settings menu, there are several possible solutions:

• Enter the BIOS menu through Windows OS - use this link to read about how this is done.

• Try calling the BIOS using other service keys, for example, “F8”.

• Finally, you can get to the basic settings using the System Restore rescue disk or Windows distribution.

Black screen and silence: causes and solutions

This “electronic incident” has a rather long list of “causes and consequences”, however, it is possible to identify the main symptoms of the malfunction, namely, to quickly identify the real culprit of the “silent triumph”.

• There is a 99.9% chance that the power supply has failed. Naturally, replacing the component with a known-good power supply unit will correct the situation in the direction of “Problem resolved!”

• The power button is faulty - replace the switching element or check the wire for mechanical damage(obvious breakage, deformation of the wire, oxidation of contacts, etc.), of course, with its subsequent restoration (soldering, cleaning).

• Dust contamination of the inside of the computer case (especially important for portable computer equipment - a laptop) - it is necessary to clean all components of the system board, as well as the attached modules and wiring equipment, from dust. Do not forget to clean the protective mesh of the air intakes and other structural elements of the body.

The computer turns on, but the monitor screen is “full of dark secrets”

As a rule, problems starting a computer system are always accompanied by specific sound signal, the tonality and sound sequence of which has its own decoding code.

To solve the problem described, you can also try changing the computer’s power supply, but more likely this “PC behavior” indicates that the BIOS has detected a faulty component in the system: one of the memory sticks (RAM) has failed, the hard drive has broken, or The processor temperature has reached a critical level. In the latter case, it is necessary to replace the thermal paste and check the cooling system cooler for serviceability.

Otherwise, user actions should be as follows:

• Disconnect all peripheral devices (printer, fax, web camera, external storage devices, etc.).

• Remove all RAM modules.

• Disconnect hard drives.

• Switch to a different graphics mode - change the video circuit from integrated to discrete, or switch to the built-in video chip if you used an external video card.

If an empty continent starts up, add one component at a time from the previously disabled components and carefully monitor the reaction of the microsystem as a whole. In any case, if the BIOS starts, it means you have already achieved a positive result!

By the way, do not forget that a black screen may be the result of a failed monitor. In laptops, the integrity of the connecting cable is often compromised, which is constantly subjected to dynamic load when opening/closing the display cover. In the latter case, it is better to contact a laptop repair service center. In both the first and second cases, to check the truth of the assumption, you can always try connecting an external monitor to the VGA connector.

In conclusion

Here, in brief, is the entire list of instructions for the problem “BIOS does not start: what to do.” We hope everything worked out for you and access to basic settings is restored. Of course, you should not lose sight of another not described way to resolve the problem - switch the CMOS jumper to the RESET position (then return the contact element to its original position).

And you know, this article has a big continuation, because the BIOS may not start due to swollen capacitors, as well as “dead” transistors... Don’t miss it!