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If the Version and Date of BIOS available for download is newer than the one you have currently, then click the download icon next to the BIOS update utility. After extraction, make sure the check is placed for the “Install BIOS Utility now.” option. This works in most cases, where the issue is originated due to a system corruption.

If for some reason you can’t get the above method to work, simply type your laptop’s or desktop’s model under “Search Products”. In the search results below, executable and/or bootable cd (not available for all models) of latest BIOS will be available. Click yes for any all User Account Control warning that appear from now on till you are done with this guide. If the issue is with your computer or a laptop/notebook you should try using the Reimage Plus Software which can scan the repositories and replace corrupt and missing files.

First you’ll have to know the version of current BIOS installed on your system. In the larger right pane, locate BIOS Version/Date. If there is no such thing, then simply download “BIOS Update Utility for Windows”. Connect the USB to the target system, power it on and keeping tapping F12 until you see the Boot menu. In case of laptop, make sure the battery is present in the laptop and the AC adapter is connected with it the whole time.

To update your BIOS on your Lenovo computer/laptop, you will first have to check which version of BIOS is currently running on your system. Connect the USB you’re going to make bootable on another system you have access too. If F12 doesn’t’ works, it may be different for your model, you’ll have to check it from Lenovo’s website. If this guide didn’t work out for your model, do let us know and we will guide for your specific model.

Your computer's BIOS - Basic Input/Output System - is a chip on the motherboard which contains enough information to allow it to start up before the main operating system begins to load.

Here's everything you need to know about how to update a PC BIOS, whether traditional or the newer UEFI standard.

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At least, that was my experience when working with pre-UEFI motherboards in a lab environment.

BIOS is an acronym that stands for Basic Input Output System.

Also know as "System Setup", the BIOS is software that is contained on a small memory chip on the PC's Motherboard, typically referred to as the CMOS (Complementary Metal Oxide Semiconductor).

Like drivers and softwares, updates for BIOS are also released occasionally, but you should have a very good reason for updating your BIOS, also called flashing your BIOS. A menu will open, and select BIOS setup from it Use the above given method in Method 1 to check if newer version of the BIOS is available. If you have downloaded a simple “BIOS Update Utility for Windows” file, then next to “Create a bootable disk using” select Free DOS. After extraction, uncheck “Install BIOS Utility now.” option. Paste the previously copied file path in the address bar up above.

Unless you are having a specific issue like compatibility while installing new hardware that is resolvable through BIOS update, only then you should update your BIOS. In the window, make sure System Summary is selected in the left pane. If in the results you can see “BIOS Update Bootable CD iso” whose BIOS version is newer than you already have then download it. Copy everything form the opened folder to the USB you just made bootable. Do not turn off your computer or laptop in any case during the updating process.