The BIOS was created in 1975, its abbreviation stands for basic input / output system, and the main function is the launch of the operating system and hardware components of a PC. It also loads power and temperature management features. The firmware identifies, tests and launches the main components of the system, such as a hard disk, video card and keyboard.
Most modern computers store BIOS on the motherboard's ROM chip. If it has crashed, then determining the motherboard model will usually help restore BIOS. The restart of the firmware will depend on this.
Motherboard BIOS
BIOS recovery is a simple process that anyone can do on a PC if they have a serious problem and need to return the settings to the factory state. Before restoring the BIOS, they perform the act of resetting the motherboard, a process called Clear CMOS. It provides for such actions:
- cleaning parameters stored in BIOS ROM;
- return the PC to the neutral state from which it starts;
- Troubleshooting on the first start-up of the PC after assembly or after updating the BIOS.
The main reasons for performing firmware recovery:
- The motherboard does not start after setting BIOS-specific parameters.
- One of the most common reasons is manual tuning of RAM on the motherboard. If a parameter is incorrectly entered from the many settings that RAM has, the board will fail and the PC will not start.
- Another of the most common reasons is overclocking. If the user increases the frequency, while there is insufficient Vcore for the processor, it is very likely that the motherboard will not boot.
In order to perform a reboot, you need a key that is typed on the keyboard. It differs for different computer models and is usually indicated on the screen when the PC starts, for a short period of time. Before restoring the BIOS that has flown, you need to find out the key keys.
They can be: F1, F2, F10, F11, F12, Esc, or some other combination of the type "Control + Alt + Escape". If the user does not know the recovery key and does not see the indication on the screen, then a request for the phrase “computer brand + enter the BIOS” should prompt a solution. The same answer is in the PC manual. After the correct set of keys, the user will see the BIOS setup screen.
Running Clear CMOS
If the BIOS has flown, but the user does not know how to restore it to the PC, experts recommend performing Clear CMOS. To do this, the first thing you need to find on the surface of the motherboard is three grouped contacts, next to which there are Clear CMOS or CLR_CMOS phrases. It will be easier for the user to find the mode if he first familiarizes himself with the manual for the motherboard. On these conclusions there will be a jumper closing the contact between them. It should also be noted that there are those that have only two contacts, without any jumper.
The mode execution algorithm is as follows:
- Turn off the computer.
- Find the battery on the motherboard. This is a round battery, similar to an element from a wrist electronic watch, located on the surface of the board.
- Carefully remove it from the outlet where it is located.
- Before restoring the BIOS that has flown, change the position of the jumper, which closes the circuit between the two contacts. If contacts 1 and 2 are initially closed, then set the position so that contacts 2 and 3 are closed.
- Find a conductive metal surface and manually close the circuit between the two contacts. A flat head screwdriver is an excellent choice for this purpose.
- After completing this step, leave the circuit closed for at least 30 seconds.
- After this time, the same actions are performed, but in the reverse order.
- If everything went right, the system will start up with default BIOS settings.
BIOS recovery on a laptop
If the BIOS flies to the PC, and how to recover, the user does not know and cannot guarantee the safety of the machine, then it is better to perform a complete firmware reset on the laptop.
The operation algorithm is as follows:
- They turn on the computer and study the BIOS splash screen, which appears at the very beginning and tells you which function key (F2 / F8) you need to press to access the configuration.
- Press and hold this key until the setup screen appears.
- If you missed the opportunity to timely click, the PC will continue to boot from Win in normal mode, and you will need to restart with a repeat of the steps.
- After successfully entering the BIOS setup screen, use the function and scroll keys to navigate the menu.
- Find the "reset to factory settings" option.
- If the "Windows" crashed, restoring the BIOS, as a rule, will help to follow the instructions on the screen to go to the original configuration.
- Confirm your choice and close the screen.
- Since the BIOS is located in the ROM, it must have a constant power supply to store all the changes that were made to it each time the computer was disconnected from the AC mains.
- If there is no way to return to the factory settings, disconnect the power from the BIOS, it returns to its original configuration. The process consists of disconnecting the small battery of the motherboard. In many laptops, a BIOS battery is easily accessible and is located at the bottom of the device.
- It doesn’t matter how BIOS flies on the computer; updating the motherboard’s SMOS will help to restore it correctly. To do this, you need to remove the battery and, touching a metal object, ground it.
- Next, remove all the screws that hold the battery cover.
- They find the BIOS battery in the form of a small lithium design, similar to a watch battery, remove it, trying not to damage the neighboring circuits. Wait a minute for it to discharge, and insert it into place. Next, repeat the start procedure from the beginning.
Rebooting a PC with Windows 10
The main problem when updating the BIOS in Windows 10 may occur when you try to reboot. Sometimes a user cannot open the BIOS no matter how many times they press a key. This is because Windows does not restart the PC by default.
If "Windows 10" has flown, how to restore the BIOS through the use of key keys, the following algorithm will prompt:
- In order to be able to enter the BIOS, the first thing to do is to start loading the PC.
- To turn off the computer, press "Alt + F4" on the desktop or use the "Start" menu. It should be borne in mind that if the laptop uses the "quick start" technology, it is quite possible that the normal BIOS shutdown will not start. A number of preliminary steps are required.
- First, click on the "Start" menu, and then select "Settings".
- In the Windows configuration, they move on to the last section, entitled “Update and Security,” which contains similar recovery configurations and solutions to problems.
- Click on the “Recovery” tab in the left pane, and then click the “Restart Now” button in the “Advanced Launch” section.
- A menu will appear with a blue background, which is used to solve problems with Windows, and one of the options is to enter the BIOS.
If Windows 10 has crashed, how to restore the operating system via BIOS, users will be prompted with special tabs “Solve problems” and “Advanced options”.
Gigabyte Motherboards
Gigabyte motherboards include a feature called the “dual BIOS”, which allows you to restore a defective backup if a gigabyte BIOS update fails or a power loss occurs during the process. It doesn’t matter how the BIOS flies, it will be possible to restore work to Gigabyte dual only using the update.
There are two ways to update BIOS gigabytes from Windows:
- pre-loading the BIOS from the motherboard;
- update the BIOS from the Gigabyte server so that the program searches for the latest version.
If you need to do this with a previous BIOS boot, for example, when there is no Internet on your PC, download the aforementioned program and the BIOS version that you need. The latter is recommended so that the hardware runs at the highest possible performance and stability.
You can make a backup, which is currently available, for this, click on the tab "Save current BIOS to file" and indicate the route to save the file. As soon as the user has everything he needs, he starts updating by clicking on the tab “Update BIOS from file”, the program will ask you to search for a previously downloaded file.
Q-FLASH application
You can upgrade from your own gigabyte BIOS, with an application called Q-FLASH built into it. Before starting, format usb in fat32 and unpack the BIOS inside. They are inserted into the USB port before entering the PC. The utility offers 3 options: the first, which puts "Update BIOS from disk", the second - "Save BIOS on disk", and the third - "Exit Q-" to exit the application.
After the BIOS flies, the use of a special utility will help restore the functionality of the operating system step by step.
The action algorithm looks like this:
- Choose usb that contains the bios file.
- Select the BIOS version to enter and begin the update process.
- Perform a new file check inside usb.
- The assistant asks if you need to update the BIOS to the version that is in usb, confirm “yes”, and the process begins.
- Make sure the process is completed correctly.
- Perform a reboot, enter the BIOS and verify that the version is changed.
This process allows you to upgrade a gigabyte BIOS to a higher or lower version. In addition, with the dual Bios Gigabyte system, you can be calm before possible failures, since they start the system with its backup.
Recovery without logging in to Windows 7
You can restore the system without going into Windows 7. It often happens that after Windows 7 crashes, restoring the system through BIOS is the only way to restore the PC’s performance. The procedure will depend on the specific equipment installed on the machine. If the device has a CD / DVD player, delete all discs from it. Then turn off the computer and external USB drives.
Recovery Algorithm:
- Turn on the PC and quickly press the F8 key on the keyboard. The Win logo should not be displayed. It is best to press F8 several times in a row, at the time the PC starts.
- When the process is going well, a screen appears with a black background and white letters. They enable advanced OS boot options, using the arrow keys to select the one that sets the safe mode with the command line, and confirm Enter on the keyboard to enter it.
- After downloading a series of files, the MS-Dos console window opens with a black background and white letters. They write the command: rstrui.exe and press Enter on the keyboard.
- The recovery assistant starts, the user must follow all his instructions.
Reset Lenovo
Surftec will reinstall all Lenovo systems to the standard version of Windows 7 Professional, while new systems are usually installed with Windows 8 or 10.
Windows 8 supports the newer, faster BIOS - UEFI, which provides added security. To start Windows 7, this mode must be disabled. For the situation when the BIOS on the Lenovo laptop flies, the establishment of the causes of the emergency will help restore its performance.
If the user reset the BIOS and the default functions were enabled, then Windows 7 will most likely not be able to start automatically. The system may have other problems, for example, broken wireless communication or old hardware drivers, which will also interfere with the normal recovery process.
For cases where the firmware has flown, recommendations on how to restore BIOS are to perform the indicated actions:
- They close the windows and make sure that the laptop is completely turned off. To do this, go to the "Start" menu and select "Shutdown."
- Press the power button, and then press the F1 key every two seconds until the BIOS Welcome screen appears.
- BIOS navigation is performed using the arrow keys on the keyboard. The left and right keys move between the upper BIOS headers “Main”, “Config”, “Date / Time”, “Security”, “Startup” and “Restart”.
- The up and down arrows allow you to navigate through the available options on each page.
- The enter or return key will open an option with additional settings, then use the up and down arrows to highlight the desired option, and the return and enter keys.
- Use the right arrow key on the keyboard to select the “Reboot” screen.
- Use the down arrow key to select the OS Optimized Defaults option.
- Press the return or enter key, a pop-up window will appear.
- Use the up and down arrow keys to select “Disabled”. The selected option is shown in bold and white text.
- Use the up arrow once to select “Load Setup Defaults” and press the “Return” or “Enter” key.
- Make sure that “Yes” is selected using the left and right arrow keys, and then press the “Enter” key. The selected option is highlighted in black.
- Press the F10 key and use the left and right arrow keys to select “Yes”.
- Press the return or enter key to select “Yes”, the machine will now save the new settings and reboot.
AMI Biostar boot software
If the BIOS flies, how to restore the biostar from the boot diskette can be clarified in the technical documentation for the motherboard. But since this scheme is used for old modifications of computers or PCs operating in server mode, the instruction may be lost, then you will have to search for a topic on the Internet.
This setting is a standard AMIBIOS8 kernel feature, enabled by default, and allows the user to restore the BIOS image using a floppy disk without the need for additional utilities. Before restoring the biostar, if the BIOS has flown, follow the instructions below. The instructions for manually starting recovery of a boot block from a floppy disk are as follows:
- Insert the floppy disk with the new BIOS file into the root directory of drive A. In most cases, the file should be named AMIBOOT.ROM. However, this file name may differ from one product to another. The user can clarify this information in the technical documentation of the motherboard.
- Press and hold the keys when turning on the power until the indicator for accessing the floppy disk drive lights up, which may take several seconds.
- Release the keys and AMIBIOS issues a series of beep codes that indicate that the BIOS system ROM file is being updated.
- After downloading the file, a progress dialog box will be displayed.
- After successfully programming the flash ROM, the computer will restart.
- The user should not interrupt the BIOS flashing process until it completes completely.
- One of the functions of the AMI BIOS boot block is code for checking the integrity of a BIOS image in flash memory.
- If a problem with the BIOS image is detected in the boot block code, boot block recovery will automatically start. This condition will be indicated by a series of beep codes.
Crisis Disk boot block
BIOS Recovery Boot Block is a special BIOS boot block, with minimal initialization. The function is included to restore the firmware for successful completion after the BIOS flashing process fails. The system provides hot keys "Fn + Esc", including the process of restoring a working system during BIOS POST. To use the function, we recommend using an AC adapter and a battery. When you enable the function, the BIOS forces you to enter a special block called Boot Block.
Recovery steps should be taken using a USB flash drive:
- Pre-cooked Crisis USB dongle. It is created by running Crisis Disk software in another system with Windows OS.
- Connect a USB drive.
- Run wincris.exe to create a USB Crisis drive.
- Click “Start” to start the process.
- Select the "Quick Format" option for the disk and click "Start."
- Follow the instructions on the screen to create a disk.
- Copy the BIOS file KAYF0X64.fd to the root directory of the USB flash drive.
- Attach a USB drive to a USB port.
- Press the "Fn + ESC" buttons, turn on the power.
- The power button flashes orange once.
- Press the power button to start the "Crisis" system mode.
- After completing CRISIS, the system reboots with a working BIOS.
Acer Reset Options
If the user has forgotten the BIOS password for the Acer laptop, he will need to access the BIOS in order to make some hardware changes to the computer, which can be password protected. Resetting it before entering Acer is easy.
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- Learn how the latches hold it in order to properly remove the CMOS battery.
- After extraction, they wait 30-40 s, insert the battery into place and restart the PC.
- If everything went well, there should no longer be a password.
Thus, BIOS is a basic input-output system, an indispensable function of the operating system of hardware components, the reliability of which a computer depends on its proper operation. He does not like frequent interference with his settings, but nevertheless a competent user needs to know how to work correctly with the system for any extreme cases.