How To Open Bios In Windows 10?


Created At 1 year ago

If you need to update your computer’s UEFI (BIOS) settings, this post will teach you two methods to do it on Windows 10.

What Exactly Is BIOS?

Basic Input/Output System (BIOS) is the built-in core processor software responsible for booting up your PC and is the most critical startup application.

  • The BIOS, usually found on your computer’s motherboard as a chip, acts as a catalyst for PC functionality.
  • The BIOS is stored on an erasable, programmable, read-only memory (EPROM) chip, which preserves data even when the power source is turned off. When the computer is turned back on, BIOS recovers the previously saved data.
  • The BIOS system also controls data flow between your computer’s operating system and any connected peripherals, such as a hard drive, keyboard, visual adapter, printer, or mouse.
  • When you turn on your computer, BIOS does a Power-On Self-Test, or POST, to see if all of your linked devices are working properly and are in their normal locations.
  • Once all attachments have been assigned and approved, your computer will restart normally and transport you to your loading screen in a matter of few seconds.
  • If BIOS identifies a problem, an error screen or a series of beep codes will show, effectively signaling that something has gone wrong.
  • BIOS technology has progressed in recent years.
  • BIOS software has been used in computers since the 1980s and has progressed significantly in efficiency and improvement. On the other hand, BIOS has become obsolete due to the quick pace of technological advancement and offers several barriers to today’s technology.

Newer PCs with storage capacities of many terabytes appear to be too sophisticated for older BIOS software. Newer systems, which are frequently equipped with 3TB drives or more, are limited to 16-bit CPU modes and bootable drives of 2.1TB or less.

As a result, the UEFI was formed out of the need for more powerful booting. The new BIOS standard accommodates the restrictions that the old BIOS system could not overcome. UEFI, or Unified Extended Firmware Interface Forum, is a 32-bit or 64-bit operating system that can easily handle drives up to 9.4 zettabytes in size.

UEFI is not only a BIOS replacement but also a tiny operating system that runs on top of your PC’s built-in firmware.

In essence, regardless of whether BIOS or UEFI powers your computer, you rely on this software for quick boot times and proper processing performance. Having access to your computer’s BIOS allows you to undertake routine maintenance for a healthy machine. Read below to know how to open bios in windows 10.

What Is The Difference Between BIOS And UEFI, And How Do I Know Which One To Use?

The BIOS (Basic Input/Output System) is the system firmware stored on a chip in your computer. This implies it loads ahead of the operating system and manages the machine’s basic configuration.

Before running the operating system, it does a general check on your hardware to make sure the RAM, hard discs, and other components are all functional. Users can access the BIOS to choose which disc is scanned first for an operating system (useful if you’re trying to remedy a system crash by booting from a USB device), as well as a variety of other features.


BIOS is an operating system that dates back to MS/DOS and has stayed mostly unmodified since the invention of the personal computer. On the other hand, time does not wait for firmware, and as a result, it has been supplanted by a newer, more powerful option.

Computer UEFI Chip

The usurper is UEFI, which can handle greater hard drive sizes, load faster, and improve the PC’s capabilities and security. But it’s simply a renamed BIOS.

The most significant distinction is that a UEFI can be controlled both with a mouse and a keyboard. However, because the pointer control in some UEFIs isn’t extremely precise, you could discover that you want to stick to keyboard-only control.

What Are The Fundamental Features Of BIOS?

Let’s look at what BIOS accomplishes for your desktops, laptops, and tablets now that you know what it is. There are four functions of the BIOS:

1. Publishing

As previously stated, POST refers to the Power-On Self Test that your computer performs when you switch it on. POST checks your PC’s hardware and confirms that it is in working condition and that your operating system is free of faults.

POST examines your keyboard and disc drive, as well as your computer’s RAM speed and integrated ports. POST will proceed, as usual, allowing your computer to boot normally if everything is in order.

BIOS displays an error message in the form of displayed text or a series of error-indicating sounds if an error is discovered. Because these beeps are always indications for specific messages, you should investigate what it signifies for your computer’s hardware if you get this result.

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2. CMOS Configuration

Your PC’s CMOS retains all low-level settings, such as system time and hardware configuration.

CMOS configuration

This implies that any changes you make to your BIOS structure are saved on the Complementary Metal-Oxide Semiconductor, or CMOS, memory chip. The CMOS setup is in charge of password, time, and date settings.

3. Loader For The Bootstrap Framework

The bootstrap loader is a program that lives in your computer’s EPROM or ROM and is responsible for reading the hard drive boot sector to progress the operating system load.

The bootstrap loader initiates the POST and then loads Windows 10 into memory when you restart your computer. The bootstrap loader has been superseded by an EFI, or Extensible Firmware Interface, in newer PCs.

4. Drivers For The BIOS

The various programs stored in your computer’s many memory chips are known as BIOS drivers. These low-level drivers are needed to start your computer and prompt you with basic operating controls.

How Do I Get Into The BIOS On Windows 10?

Your Windows 10’s front-end can be used to access BIOS. Here’s how to do it:

  1. Open the Windows start menu and click on the bottom left corner, ‘Settings’.
  2. Next, select the last option, ‘Update & security.’
  3. Select ‘Restart now’ from the ‘Recovery‘ tab. When you click it, your computer will restart immediately. So be ready for it — save and close anything important.
  4. After your computer restarts, a new screen will appear in place of the typical login screen. Choose ‘Troubleshoot’ from the drop-down menu.
  5. Click on ‘Advanced options.’
  6. Select the last item on the menu, ‘UEFI Firmware Settings.’

You’ll be in your BIOS, or UEFI, after clicking this. You may then customize how your computer begins, when security software runs, and other settings. However, use caution while tinkering with the Windows 10 BIOS. If you don’t make the adjustments correctly, they can have unintended consequences.

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On Windows 10, Here’s How To Go Into The BIOS Using A Key

To modify the system date and time, hardware settings, or boot order, you may need to enter the BIOS. While the machine is booting, you can access BIOS by pressing a specified hotkey. However, because the time interval is small, be prepared to push the correct key at the correct time following the POST beep.

Newer PCs with UEFI BIOS provide a simpler approach to access the BIOS (also known as the Setup) by first booting into Windows 10.

The exact time to press the BIOS hotkey is after the computer has turned on and Windows has loaded. There is some (but not much) time to hit the key on older systems with legacy BIOS. If the brand logo vanishes before you press the key, the timer has expired, and you’ll need to restart the computer to access BIOS.

Look for a message that says, “Press to Enter Setup.” Key Name can be DEL, ESC, F2, F10, or any other key that the manufacturer supports.

  1. Press the Power button to start your laptop.
  2. As soon as the brand’s splash screen displays press the BIOS hotkey (e.g., F2, F10, Esc, or DEL).
  3. Repeat tapping the hotkey until you reach the setup mode. Alternatively, even before turning on the computer, keep your finger on the key and press it until the BIOS appears.
  4. The particular key, or even a key combination, is determined by the computer’s manufacturer. If the correct key isn’t displayed on the boot screen, see the computer’s handbook.


BIOS Key For A Specific Brand

Here are a few keys that you can use with these brands.

  • F9 or Esc on HP
  • F12 on (Dell)
  • F12 on Acer
  • F12 on Lenovo
  • Esc on ASUS
  • F12 on Samsung
  • Esc on Sony
  • Volume Down Button on Microsoft Surface Pro


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