How to Update The BIOS Of Your Computer

BIOS stands for Basic Input / Output System. It’s the first software that your computer will load. All details of system time, boot settings, and hardware configurations are stored in the BIOS.

By updating the BIOS, you will help your computer to fix bugs, improve caching functions, and add compatibility with new devices.

You probably should not update the BIOS on your motherboard. It’s one of the most important things that you should not mess up.

However, if you need to, be careful when updating the BIOS version. During the update process, if your computer crashes or loses the power, the BIOS may corrupt. Your computer will be not able to boot / start.

These BIOS updates are available at the website of the manufacturer. Check the current version of your BIOS, download the newest version (if available) and then update the BIOS.

Also See: How To Reset Your BIOS Settings?

Here is how to check the BIOS version of your computer.

How To Check The BIOS Version Used By Your Computer

You might not know that the BIOS version will display in the BIOS setup menu. But you don’t really need to reboot your computer to check this version number. There are several ways you can use to see your BIOS version within Windows.

Firstly, open Command Prompt program by pressing Windows key + R and type “cmd.exe“, and then press “Enter“.

Enter the following command into the Command Prompt program:

wmic bios get smbiosbiosversion

It will show you the version number of your BIOS or UEFI firmware in your Windows computer.

The BIOS version also shows in the “System Information” window. You can search “System Information” and open it to view the version number of your BIOS.

As you can see, the BIOS version number is displayed on the right side. Take a look at the BIOS Version/Date field.

Windows System Information BIOS Version

The last method to check the version number of your BIOS is using the CPU-Z program. Simply download and install CPU-Z on your computer, launch it and select the mainboard tab to view information of your mainboard.

CPU-Z BIOS Version

How To Update Your BIOS

Firstly, go to the manufacturer’s website and check if there is any new BIOS update for your mainboard. If you don’t know your mainboard’s model number, use CPU-Z to view it instead of opening up the case.

In this article, we use a desktop computer with a ZOTAC H87ITX-A-E mainboard as an example.

Go to the mainboard manufacturer’s website and find the “Downloads” or “Support” page. Select your mainboard model to view a list of available BIOS versions, along with detailed changes information.

Currently, there is a new update for this mainboard. The version number of the new BIOS firmware is 2K140515. It will add support Intel “Haswell Refresh” CPUs.

Zotac BIOS Update

Simply click “Download” button to download the .zip file, extract it and run the application to update the BIOS firmware.

Tip: Remember to backup your current BIOS version before flashing your BIOS firmware. Don’t know how to backup your BIOS? Read it at the end of this article.

Different mainboards use different tools, so there is no all in one tool to update your BIOS. However, the update process is quite similar on all mainboards.

Depends on your mainboard, select and download the version of BIOS you want to update to. Most cases, you will select the newest BIOS version.

Most manufacturers provide Windows-based flashing tools. With this tool, you will be able to run the update process within the Windows to flash your BIOS and then reboot.

Updating your BIOS with the Windows-based tool can lead to some problems. Several security programs may prevent the tool to write to the computer’s BIOS. So it could cause the process to fail and your BIOS will corrupt. As we mentioned above, any system freezes or crashes could also lead to a corrupted BIOS. If you would like to use Windows-based tool to update your BIOS, we recommend you to disable all antivirus and security programs first.

Tip: You should read the README file before doing the BIOS update process.

How To Update Your BIOS From BIOS Menu

Some mainboard manufacturers offer a BIOS update option in their BIOS menu. You can copy the BIOS file to a USB drive, restart your computer, enter the BIOS or UEFI screen.

From the BIOS menu, select the BIOS update option, and then select the BIOS file on the USB drive. It will automatically overwrite your current BIOS with the new one and update your BIOS version to the latest.

BIOS Update Process

How To Update BIOS From DOS

If you select to update your BIOS from DOS, you have to create a bootable drive, such as USB memory stick or CD/DVD. And then copy the BIOS files into it.

Next, restart your computer and select to boot from this drive. Depend on the instructions from the manufacturer, you have to run a specific command.

Wait for the BIOS to get updated and then restart your computer.

Dell BIOS Update

How To Backup The Existing BIOS Version

Most Windows-based BIOS update programs come with a backup option. It allows you to read your current BIOS version and save a backup version. In case something goes wrong with the BIOS update process, this backup may be a lifesaver.

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