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Rollback in BIOS. BIOS rollback to the previous version

Hello, dear readers.

Any computer is a complex system. Sometimes during the operation of the device, some problems associated with the correct performance of their functions such as BIOS may appear. It is possible to solve this illness in several ways in several ways - it all depends on the type of error. Next, I will tell you how to restore the BIOS on a laptop, depending on the kind of problem.

Recovery to factory settings

If suddenly the device stopped functioning normally, and you have a suspicion that the reason for this is the incorrect settings mentioned above the region, they can be triggered to return to factory:

In most cases, such a procedure helps. True, sometimes you can meet with a simple mistake that does not allow the OS normally. It is fixed simply:


With a password

Sometimes, users can meet with the situation when someone or they themselves have previously installed the password for the area we need, and they have forgotten it safely. As a result of several incorrect attempts, the device simply ceases to function.

Then you need to open myself mobile computer. By the way, this method will help if it does not turn on:


Important!Before you go further, you need to clarify several basic moments. So, in some laptops, for example, Acer Aspire., not two, but three contacts. In this case, you need to jumper to another position and wait a few minutes.

In addition, you can sometimes find a special small button that performs the same in its functions. It just needs to be pressing a pencil for a few seconds.

Another output is to extract a battery that supports all important data in memory. In case it is removed - everything will be reset.

Restoration after the firmware

In case problems appeared as a result of an unsuccessful installation new version For the corresponding component, you need to perform a number of movements.

Sometimes the computer owner faces the need to clean the system from various bugs that interfere with normal operation. This can be done, reinstalling operating systemor Using special utilities. But there is a way that has several undeniable advantages before them.

Rollback of settings to factory values \u200b\u200bwill help restore the performance of the device in most cases, even if you cannot start the OS. This method is especially relevant for those who do not want to spend time on reinstalling the OS.

When restoring the factory settings, the OS will be reinstalled automatically. Re-code activation OS is not required. The version of Windows will be restored, which went with a laptop when buying.

Handging BIOS, you eliminate the listed problems. In this article, we will look at how to return the laptop to the factory settings and restore its performance. There are several ways that we will consider closer.


The setting option may be needed if:


What are factory parameters?

Factory settings are set by the manufacturer for specific model Computer or laptop. They store BIOS settings and computer configuration parameters. There is such information in the dynamic memory of the device, which is called CMOS.


All factory settings occupy quite a bit of space, and have separate meals - from a small battery located on the motherboard. You can reset the laptop parameters without access to the BIOS. To do this, just remove the battery, wait 30-40 seconds, and insert it again.

After the reset process is completed bIOS settings And reinstalling OS, you will receive a laptop in the state in which you bought it in the store.

It is worth noting that in order to successfully return the device to factory parameters, in addition to CMOS, the Recover section is required in which it is stored setup files And other necessary system information.

Video: Laptop factory settings

Where is Recovery and its activation

The hidden partition on the hard disk that keeps all the files needed to restore the system are called Recovery. It is created by default on all laptops, and is deleted or damaged in most cases as a result of incorrect user actions.

See where there is a hidden section, you can:


There you can see and the size that takes Recovery on HDD. This is usually 20-25 GB of system information and installation files.

If you have laptop Toshiba.then you already probably noticed that there is a Disk D system foldercalled HDD Recovery. It also stores the information necessary to reset the system, so it is impossible to delete it.

Activation Recovery launches the reset process custom changes BIOS, recovery of factory parameters, and reinstalling OS and system software And drivers.

In order to activate Recovery, press a specific combination of hot keys. This will allow you to enter system menuwhere you can select multiple system recovery options. It should be remembered that each manufacturer has a combination of hot keys, we will look at the most popular.

We restore the settings with hot keys

In order to return the laptop to the factory settings, you should remember several combinations of hot keys. When loading the system, you should press hot keys to access the BIOS Setup menu, where you can run the recovery process of parameters.

Depending on the manufacturer computer equipment, HOT KEYS are distinguished and their combinations:

  1. TOSHIBA - depending on the model F8, or 0, or Fn + 0;
  2. Sony - F10;
  3. Acer - Alt and at the same time F10;
  4. HP, LG and Lenovo - F11;
  5. Samsung - f4;
  6. Fujitsu - F8;
  7. ASUS - F9;
  8. Dell is simultaneously Ctrl and F11, but in some models F8;
  9. Packard Bell - F10. If Windows 8 is installed, you can use the power management button when entering the system. You should clamp shift and at the same time select the "Restart" menu item;
  10. MSI - F3, and on some models F11.

How to return the laptop to the factory settings via bios

Using Hot Keys, you can roll back the system system changes and return the BIOS to factory values.

On the black screen that appears consistently select:

  1. option "Running the recovery center" for Sony, or "Troubleshooting Computer" for Toshiba, or "SYSTEM RECOVERY" for hp;
  2. menu item "Load Defaults BIOS".

Depending on the manufacturer, the name of the option may vary: "LOAD BIOS SETUP DFAULTS", "Load Safe-Fail Defaults", But words "LOAD" and "DEFAULT" will be present.

Preparation

Prepare for resetting settings:


After you run the process of resetting the settings, the process of collecting information and preparation will begin system files. It may take some time, so do not worry.

Recovery process

After you run the recovery process, all actions will be automatically executed, without your participation. The computer can reboot if required by the installed software. In the process of resetting settings, drivers for devices will be restored and standard system programs are installed.

It is worth mentioning that it is not always possible to successfully reset the settings on the laptop. This is possible if:


What can be done if you deleted the hidden section Recovery from hard? You will have to search boot disk with settings or image hidden section For your laptop. They can be found online, and sometimes manufacturers offer to buy such discs to restore the system on official sites.


If there are no finished images for your laptop, you can ask the owners of a similar model to create such an image on computer forums. And to avoid such a situation, you can create yourself blood flash drive Or a DVD for your laptop that can be kept at hand and use if necessary.

This article is suitable for those who understand a little, as the computer and its components are arranged, why do we need bios at all and how it is associated with motherboard, types of bios, types of motherboards, etc.

In this case, it is better to entrust the work of a professional, in order not to do even worse, for sure you have a friend who is better understood in this, or the master to which you can contact.

Introduction

BIOS problems arise for various reasons, it may be a failure during the firmware, unavailable user, an error in the firmware file compatibility, the position of the stars in the sky, etc.

So, in this article we will analyze in detail how to reset the BIOS to the factory settings, both hardware and software, as well as the causes of the problem. Consider the features of various Bios, special software from manufacturers of motherboards, etc.

Some "Anatomy" of the computer

The computer consists of a variety of components:

  • motherboard (it is important to us);
  • cooling systems (active and passive);
  • sound card;
  • power supply;
  • hull;
  • and periphery.

We are interested in the motherboard. It is a small chip on it. Depending on the manufacturer, it can be removable or mounted. We find the batter, resembling a coin or tablet, and near the jumper. But near her a chip, on the type of plate 1x1, it is possible that with a hologram is bios. It can be absolutely inaccessible, even for viewing.

If briefly, the BIOS is something that connects the device device with other devices connected to it. Is system software.

Problems

When problems with BIOS, the most common fault resulting is the inability to start the computer. Following it, judging by the statistics - a cyclic reboot.

The reasons

Many of them are standard:

  • the occurrence of the error during the update;
  • firmware error;
  • bIOS version, conflicting with motherboard;
  • when updating from under the system - the system fails or the effect of antivirus;
  • user's hand curves;
  • flash memory error;
  • voltage drops.

How to roll back bios back hardware method

This is the most extreme case, and it is better to trust a professional. But if you decide on your own, stick to the next algorithm.

It is necessary to extract the chip very carefully, otherwise you can damage the panel or the chip itself. It is better to use a device for removing the chip, but it is possible to remove it with the help of sewing gently.

Hot replacement looks like this.

  1. Damaged chip replace another similar. Take a similar system fee, Extract the BIOS chip from it and try to download the computer. If it turned out, then the problem is in the firmware, and you can try to restore it.
  2. Take another motherboard with bios of the same size and type. Better, if it is the motherboard on the same chipset and the same manufacturer.

We act like this:

  • prepare a firmware;
  • provide free access to the BIOS installation panel;
  • remove from the BIOS panel and prepare for the installation of a good chip, having previously rugged it with threads;
  • establish a problem chip, sum up and gently combine with the contacts of the panel, then press your fingers;
  • enable your computer and download MS-DOS;
  • after downloading quickly and carefully remove the BIOS, check if the computer does not depend on;
  • accurately install the problem bios in the panel, check the computer's performance;
  • in the command line, run overwriting BIOS (when errors, try other keys command line: Awdflash Firmware / PY / WB / Qi / F).

How to roll back the bios back program

The algorithm is next.

  1. Alternatively, you can change the date, can help when infecting viruses.
  2. There are many key combinations to enter the BIOS: F1-F11, (DEL) and others - depending on your device. The above are the main.
  3. It is possible that you have to enter a password, then you need to reach the date menu and change it in any direction. Exit and save.
  4. Further through the system with the help of the utility to repair to the initial state: "Start" -\u003e "Standard Service Programs" -\u003e System Recovery Utility.
  5. Select a suitable date.

If you need to restore initial settings BIOS, then you need to go to it and install factory settings. The F9 key will establish default settings. If a " Hot key"Does not work, then look for something similar to Load Defaults. In the absence of information about the password, open system unit And find a small battery, you need to extract it for 10-15 seconds - it will betray all the settings.

  • create boot media, place a Flasher for BIOS and BIOS itself;
  • reboot from the media (F9 - select this media);
  • then through DOS to flash the motherboard.

How to roll back bios to previous version On devices where access to the BIOS is closed?

  1. Through the start menu or through "Run" (Win + R), enter the command: debug.
  2. Further prescribe the following:
  • for AMI BIOS: O 70 FF, then "Enter" and write: O 71 FF, again click Enter. And complete everything with the Q symbol. There is another option: to rename the file downloaded from the site in amiboot.rom, transfer to the root of the floppy disk. Install a floppy disk to the computer turned off. Press the left Ctrl + Home and turn it on.
  • With Award BIOS: O 70 17, O 73 17 and again Q. Additional option: Place the firmware and BIOS files on a floppy disk (usually in one archive). Create text Documentwhere the name of the BIOS file is indicated with a resolution. BIN. Rename the document in AUTOEXEC.BAT. And we continue, as indicated above.

However, many manufacturers have other methods that make it easier to conduct an operation with bios.

How to roll back bios on ASUS

ASUS motherboards support Flashback technology. Therefore, the algorithm is so.

  1. Download BIOS file for your model, place it on the USB flash drive.

2. After downloading, you need to rename the model name, for example Sabertooth x79 in SaberX79.rom. The manufacturer's website should have a more detailed instruction.

3. Format the FAT32 USB flash drive, place the renamed BIOS on the USB flash drive, then connect to uSB port With the inscription or FlashBack or Rog Connect pattern. It is advisable to turn off the computer.

4. Turn on the computer by the BIOS button - hold 3 seconds. When the indicator goes out, the firmware process will be completed.

Alternatively, you can try through special program From the official site in the BIOS-Utility tab.

How to roll back bios on hp laptop

Everything is easier here.

  1. On the disabled laptop click Windows + B.
  2. Holding Windows + B, press the power button 2-3 seconds, release the power button, but hold Windows + B or V until the BIOS update screen appears, or the beep sounds until the beep.

How to roll back bios on gigabyte

On these boards, failures occur very rarely. But still happen.

  • problem with the main microcircuit;
  • microcode completely erased;
  • damage to the contents of both chips.

Some motherboards can use spare flash memory as the main one. Another group of boards can use the selected area on the HDD (hard disk). Recovery automatic.

How to roll back bios on msi

The recovery process is similar to the recovery to ASUS.

  1. Place the BIOS on the USB flash drive, connect to the computer.
  2. Connect to a computer, clamp the power button for 4 seconds, clamp a combination of the left Ctrl + Home (or Alt + Ctrl + Home), turn on the computer. The indicator should turn around.

Restoring BIOS on laptops

It is done in the same way as on desktops. The downloaded file is transferred to the USB flash drive (FAT32 / 16) or disk. Then we place the device into the drive or connector of the disconnected laptop (it is desirable to disconnect the battery from the network and remove the battery), then connect to the network again and climb the key combination.

Conclusion and afterword

So we figured out how the computer works, how to reset the BIOS to the factory settings, in the properties of the BIOS, the features of the device from different manufacturers and recovery methods. And also made sure there are no differences in the BIOS firmware on laptops and desktops. After some of the proposed manipulations, your computer will be required to work. If not, you will have to buy a new motherboard, which will be compatible with your device.