You may come across the need to access BIOS or CMOS settings on your computer in order to troubleshoot problems. So let us take a look at how to change BIOS settings on a Windows computer.
Change BIOS Settings
In general, you should be able to enter BIOS setup on most computers by pressing the designated Function Key while the computer is trying to boot up.
Since, Windows computers are manufactured by a variety of manufacturers, the designated key for entering BIOS varies from computer to computer.
Hence, we are providing below the most common keys used to enter BIOS or CMOS Settings on a Windows computer and other relevant information and tips to change BIOS Settings on a Windows computer.
How to Enter BIOS Settings
Windows Computers manufactured during the past few years allow users to enter BIOS setup by pressing either F1, F2, F10, DEL or ESC key during the boot process.
If you do not know which key to press, simply Reboot your computer and watch the scrolling messages appearing on the screen of your computer.
Most computer will display a message reading “Press the “X” Key to Enter Setup“, indicating the designated key for entering BIOS settings.
As the computer restarts, you will only have a few seconds to read the scrolling messages. You can Reboot the computer again, in case you miss the opportunity to read the messages properly.
How to Change BIOS Settings
To change BIOS Settings, Reboot your computer and press/release the suggested Key couple of times, until you see the blue BIOS settings screen.
Note: You may need to press and release the suggested key more than once. Do not hold down the key and do not press the key too many times as you may end up locking the system or generating system errors.
Once you reach the BIOS Utility screen, you will see the designated keys for navigating in BIOS and the keys for saving changes in BIOS at the bottom of the screen.
As you can see in the above image, the Arrow keys are reserved for navigating in BIOS while the F10 key allows you to Save and Exit the BIOS settings.
Problems Entering BIOS
If your computer is not displaying any information about How to enter BIOS setup, you can try to generate a “stuck key error” on your computer by pressing/holding one or more keys on the keyboard of your computer (any key).
Once stuck key error is generated, it should provide the option to Enter BIOS settings on your computer.
If you are still unable to enter BIOS, check the manual that came with your computer or visit the website of the manufacturer of the motherboard on your computer.
Note: If a certain item is not available in BIOS settings, try to update the BIOS firmware. If this does not help, it is likely that the motherboard of your computer does not support such an option.
If you find that changes made to BIOS are reverting back to their default settings and your computer appears to be falling behind on date or time, you need to replace the CMOS battery.
Change BIOS on Older computers
Older computers manufactured during the mid-nineties (before 1995) made use of the following key combinations for granting access to BIOS.
Difference Between BIOS and CMOS
While many users think of BIOS and CMOS as being the same thing, they are actually two different components of a computer that work together to make the computer function properly.
BIOS (Basic Input/Output System) is a special firmware stored in a chip on the motherboard of your computer. BIOS is the first program that runs on a Windows computer, whenever it is started.
The BIOS firmware initializes the computer and allows it to communicate with the operating system and attached hardware devices like hard disk, video adapter, keyboard, mouse, USB and printer
When you make changes to BIOS configuration on a computer, the changes are stored on a special memory chip, which is known as CMOS (Complementary Metal-Oxide-Semiconductor).