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How To Find That Your BIOS Needs Updating – Guide
Although you shouldn’t update the BIOS regularly, it is occasionally necessary. Here it is how to find out which BIOS version your computer is running and how to quickly and safely update a new BIOS on your motherboard. Be very careful when updating your BIOS! If your computer locks up, freezes, or loses power during the process, the BIOS or UEFI firmware may be corrupted. This will cause your computer not to boot – it will be “locked”.
How to Check the current BIOS version in Windows
Check BIOS version at command prompt
To check the BIOS version from the command prompt, click Start, type “cmd” into the search box and click the “Command Prompt” result – no need to run it as an administrator.
At the prompt, type (or copy and paste) the following command and press Enter. You will see the UEFI BIOS or firmware version number on your current PC.
Check the BIOS version using the system information panel
You can also find the BIOS version number in the System Information window. On Windows 7, 8, or 10, press Windows + R, type “msinfo32” into the Run box and press Enter.
The BIOS version number is displayed in the System Summary panel. Note the “BIOS version / date” field.
How to Update your BIOS
First, go to the motherboard manufacturer’s website and find the Downloads or Support page for your specific motherboard model. You should see a list of available BIOS versions, along with any changes/bug fixes to each and the dates they were released. Download the version you want to upgrade to. You will probably want to get the latest BIOS version – unless you have a specific need for an older version.
If you bought a pre-made computer instead of building your own, go to the computer manufacturer’s website, look up your computer model and see your downloads page. You will find all available BIOS updates there.
The BIOS download probably comes in a file – usually a ZIP file. Extract the contents of this file. Inside, you’ll find some sort of BIOS file – in the screenshot below, it’s the E7887IMS.140 file.
The file should also contain a README file that will help you update to the new BIOS. You should check this file for instructions that apply specifically to your hardware, but we’ll try to cover the basics that work across all hardware here.
You will need to choose one of several different types of BIOS update tools, depending on your motherboard and what it supports. The README file included with the BIOS update should recommend the optimal option for your hardware.
Some manufacturers offer a BIOS update option directly in the BIOS or as a special keystroke option when booting the computer. You copy the BIOS file to a USB drive, reboot the computer, and then enter the BIOS or UEFI screen. From there, you choose the BIOS update option, select the BIOS file placed on the USB drive and BIOS updates to the new version.
Generally, you access the BIOS screen by pressing the appropriate key as the computer boots – this is usually displayed on the screen during the boot process and will be noted on your motherboard or PC manual. Common BIOS keys include Delete and F2. The process for entering a UEFI configuration screen can be a little different.
There are also more traditional DOS-based BIOS update tools available. Using these tools, you create a USB DOS Live drive and then copy the BIOS update utility and BIOS file to that USB drive. Then restart the computer and boot from the USB drive. In the minimal DOS environment that appears after reboot, you run the appropriate command – usually something like flash.bat BIOS3245.bin – and the tool updates the new BIOS version in the firmware.
The DOS-based flashing tool is often provided in the BIOS file you download from the manufacturer’s website, although you may have to download it separately. Look for a file with the .bat or .exe file extension.
In the past, this process was performed with bootable floppy disks and CDs. We recommend a USB drive because it’s probably the easiest method on modern hardware.
Some manufacturers provide Windows-based update tools, which you run from the Windows desktop to update the BIOS and then restart. We do not recommend their use, and even many manufacturers that provide these tools shy away from using them. For example, MSI “strongly recommends” using its BIOS-based menu option rather than its Windows-based utility in the README file of the sample BIOS update we downloaded.
Updating the BIOS from within Windows can result in more problems. Any software running in the background – including security programs that can interfere with the computer’s BIOS writing – can cause the process to fail and corrupt the BIOS. Any system crash or crash can also result in a corrupted BIOS. It’s better to be safe than sorry, which is why we recommend using a BIOS-based update tool or booting into a minimal DOS environment to update your BIOS.
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