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 What is BIOS?

 Computer BIOS is an integral part of the computer system. BIOS is a type of firmware of a PC and is used during the booting process (start-up) process of the PC.

 This is the first software to be started when the PC is on. While loading the operating system, the BIOS identifies and configures all the hardware of the computer such as RAM, processor, keyboard, mouse, hard drive, etc. and only then the operating system is loaded in the computer memory.

BIOS Meaning in English:

 Its ital is Basic Input Output System.

BIOS Definition in English:

 BIOS This term is an abbreviation for the Basic Input Output System. It is built-in software that determines what a computer can do without accessing programs from the disk.

 The BIOS is an important part of any computer system. For example, on a personal computer (PC), the BIOS contains the code required to control the keyboard, display screen, disk drive, serial communications, and many different functions.

Where is the BIOS located?

 The BIOS software stores non-volatile ROM chips on the motherboard. But this ROM is EEPROM (Electrically Erasable and Programmable Read-Only Memory), meaning store BIOS can be updated or rewritten.

 Complementary metal-oxide-semiconductor (CMOS) has all the settings of the BIOS store. This CMOS chip gets power from the battery and when this battery is removed and re-connected all the CMOS settings become the default.


BIOS Functions:

 The main function of BIOS is to boot the operating system on the PC.

 When the computer is on, the BIOS does many things. This is the general sequence of:

 ➤Checking CMOS Setup for Custom Settings |
➤Loading interrupts handlers and device drivers.
➤Performing Power-on self-test (POST).
➤Display system settings.
➤Deciding which devices can be booted.
How do I access BIOS?

 After the PC is turned on, press F2, F12, Delete or Esc immediately. The BIOS is different in every PC and it varies depending on the manufacturer. Bios All Motherboard Key

Configuring BIOS:

 In the above method, when the setting of the BIOS is opened, and there are several sets of text screens showing many options. Some of these are standard and others change with the BIOS manufacturer. BIOS setup utility screen is usually divided into five tabs Main, Advanced, Power, Boot and Exit and each tab has different options.

 If you are changing the BIOS settings, do it carefully. Use the tabs and arrow keys to navigate. Use the page up and page down keys to change the value of the required item. Finally, press F10 to save and exit these changes.

How to Update BIOS:

 The BIOS is the most critical part of a PC. So only update the BIOS if necessary, as it is a complicated process and if an error occurs in it, then it will make your computer unobtrusive. Updating the BIOS often resolves several issues. To update the BIOS follow these steps -

 1) Check the version of your BIOS in Windows:

 There are several ways to detect the BIOS version of a computer's motherboard.

 i) Restart your computer and go to BIOS. Inside the BIOS, you will find the version of BIOS used by your computer's motherboard.

ii) Press Win + R key - type "Msinfo32" in the search bar and click Ok. This will open System Information Windows. In it, you will see the version of BIOS.

 iii) In the command prompt, "systeminfo | type findstr / I / c: bios"

2) Check if there are any updates of BIOS available:

 After you get the version of BIOS used by your computer's motherboard, now is the time to find out the updated version is available. If your PC is branded, do a search on your computer manufacturer's web site and if the PC is not branded, search for updates on the motherboard manufacturer's site. And then download the correct BIOS update file.

3) Read the document:

 Before updating the BIOS, you should read the update's documentation file carefully to prevent your PC from becoming unobtainable.

4) Update your BIOS:

 To update the BIOS, quit all programs and run the exe file. This will reboot the PC after the install corner and update the BIOS.

Note: Most BIOS update programs include a backup option for their current BIOS version. If such a feature is available, back up your existing BIOS version before updating.





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How to enter bios all motherboard key on Windows 10 And Older Versions


What Is the Right Key to Enter Setup?

 As you already gathered, it depends on your hardware. More specifically, it depends on the motherboard the BIOS is located on.

 Common keys to enter the BIOS are F1, F2, F10, Delete, Esc, as well as key combinations like Ctrl + Alt + Esc or Ctrl + Alt +Delete,  although those are more common on older machines. Also note that a key like F10 might actually launch something else, like the boot menu. The exact key or key combination depends on your computer manufacturer and model.

 You can proceed with trial and error until you find the right key, press multiple different keys at once and get lucky or consult the list below.
Acer BIOS Keys

 The most common keys to enter Setup on Acer hardware are F2 and Delete.

 On older computers, try F1 or the key combination Ctrl + Alt + Esc.

 If your computer features an ACER BIOS, you can restore the BIOS to bootable settings by pressing and holding the F10 key. Once you hear two beeps, settings have been restored.
Asus BIOS Keys

 As with Acer, the most common key is F2.

 Depending on your model, it might also be the Delete or Insert key, and less commonly F10.
Dell BIOS Keys

 On a newer Dell computer, try the F2 key while you see the Dell logo.

 Alternatively, try F1, Delete, F12, or even F3.

 Older models might use Ctrl + Alt + Enter or Delete or Fn + Esc or Fn + F1.
HP BIOS Keys





 Keys most commonly used on HP machines to enter setup include F10 and Esc.

 On some HP computers F1, F2, F6, or F11 will open the gates to the BIOS.

 On HP Tablet PCs F10 or F12 will get you into the BIOS.

 HP has compiled information on its BIOS here.
Lenovo BIOS Keys

 The F1 or F2 key should get you into the BIOS.

 Older hardware might require the key combination Ctrl + Alt + F3 or Ctrl + Alt + Insert key or Fn + F1.

 If you have a ThinkPad, consult this Lenovo resource: how to access the BIOS on a ThinkPad.
MSI BIOS Keys

 If you know that your computer is using an MSI motherboard, then the key to trigger the BIOS most likely is the Delete key. You might even notice a message saying “Press Del to enter SETUP”.

 On some MSI motherboard models, the key to access the BIOS will be F2.
Sony BIOS Keys

 On a Sony VAIO, F2 or F3 will get you into the BIOS, but you can also try F1.

 If your VAIO has an ASSIST key, try to press and hold it while you power on the laptop. This also works if your Sony VAIO came with Windows 8.
Toshiba BIOS Keys

 Your best bet is the F2 key.

 Other candidates include F1 and Esc.

 On the Toshiba Equium, F12 will enter the BIOS.

 Toshiba also has more detailed instructions on how to access the BIOS.
Gigabyte Bios keys

 Press Del during POST, right after the computer is turned on.

Others

 Unfortunately, there is very little consistency. Neither do computer manufacturers always use the same motherboard manufacturer nor do motherboard manufacturers consistently define the same key for entering the BIOS. If you want a definite answer on which keys to press to enter Setup, you have to search for the exact model of your computer’s motherboard.
Did You Manage to Enter Your BIOS?

 If none of the keys mentioned above work, the issue might be your keyboard or rather the lack of keyboard drivers before the computer boots up. Try another keyboard and/or port. For example, if you’ve been using a USB keyboard, but your PC also has a PS/2 port, try a PS/2 keyboard instead.

 Once you have access to the BIOS, you might want to reset your BIOS to default settings.



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