BIOS Update under Windows

»» 27.FEB.2022 / updated: ---

BIOS Update under Windows

The Basic Input/Output System (BIOS) update is not a common part of Windows maintenance because it is not part of the system. Therefore, if necessary, it should be performed as a separate operation.

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Read also: Next part: Updating the BIOS with USB flash drive...

Modern motherboards are already running Unified Extended Firmware Interface (UEFI) instead of the outdated, unsafe BIOS, which supports larger hard drives (up to a few TB), mouse cursor usage, and fastr boot time. Both UEFI and BIOS are low-level software that start after you press the power button on your computer, synchronizing the hardware with the software and helping to start Windows.

WARNING: Update the BIOS, or UEFI at your own risk. An update error can cause an unusable system, or even cause hardware damage. Back up your files, images, videos, and documents, if possible, to an external drive before upgrading.

Quick Tip: Restoring the BIOS to an earlier version is not recommended, as it does not support older hardware and does not update the BIOS if your computer or laptop is working properly, even if a newer version is available. Please seek help from an IT professional!

Updating the BIOS is similar to updating the operating system software, but it is a different process because the BIOS software is not stored on the hard disk, but on the chip on the system board. Windows is constantly updated, but the BIOS no. If an update is available, it can be downloaded from the manufacturers' website.

The description of the upgrade process consists of several parts. You can click on the link that interests you most:

1.) – PART ONE: Checking the BIOS version...

2.) – PART TWO: Updating BIOS under Windows...

3.) – PART THREE: BIOS update via USB flash drive...

Let's begin:

A.) – PART ONE: Checking the BIOS version.

1.) – Press the Windows -Logo + R keys on the keyboard at the same time.

Windows -Logo + R buttons

2.) – In the "Run" search box that appears, type the command "msinfo32" and press Enter.


3.) – In the System Information window look for:

  1. – The name of the computer or laptop in the "System Manufacturer" entry (in this example: Acer).
  2. – Device model from the "System Model" input (eg Aspire V5-573G).
  3. – BIOS version /Date, version number (in this example: Insyde Corp. V2.30, 12/01/2015).
BIOS version

You can close the System Information window.

B.) – PART TWO: BIOS Update under Windows.

Open any browser and visit the computer or laptop manufacturer's website. In this example:, but it can be toshiba, dell, hp and so on.

If you are able to find the manufacturer's website, click the "Support", "Drivers", and then "BIOS" buttons, as the download programs for BIOS updates are hidden here.

Quick Tip: You can also find it by copying the device model (in this example: Aspire V5-573G) in the search box on the site, where the magnifying glass icon is displayed.

There is a manufacturer where you have to enter the device serial number, or SNID ID, or type number to find the exact version, which can be read on the back of the computer or laptop (I entered the laptop model (serial number: Aspire V5 -573G).

Ready. If you find a BIOS update program that ends in ".exe" that can be installed from under Windows, simply download it, then left-click on the program and follow the installation instructions. You must restart your computer for to take the effect.

After rebooting, you can see the new version number by opening the System Information window as described above.