When & How to Safely Update BIOS

You may have tons of questions about updating your BIOS.

What does BIOS mean? Is it safe to update my BIOS? Why are people constantly saying that you shouldn’t update your BIOS while many of them did? Does my computer need a BIOS update? If so, how to perform a BIOS update safely?

This post will walk you through these questions and show you how to update BIOS even if you’re a computer newbie.

What does BIOS mean?

BIOS, short for Basic Input Output System, is the software installed on the motherboard. When you power your computer, BIOS is the first software to run, initializing your system hardware components and preparing your computer to boot.

Should I update BIOS?

Does it mean you should update BIOS because there’s a newer version? Actually, no. But what is the BIOS update for?

New Hardware Support: Many updates are released to support new hardware like a new CPU or graphics card. So if you want to upgrade your computer’s CPU or graphics card, you may need to update your BIOS.

Fix Bugs: These new releases also help fix some known bugs. If you’re experiencing some bugs and the latest version happens to fix them, it may be worth taking the risk of updating your BIOS.

You can check the changelog for the BIOS update to ensure the update suits what you need. If there’s nothing wrong with your computer, or maybe just running slow or overheating, don’t bother updating BIOS, for it won’t improve your computer performance.

Is it safe to update BIOS?

Each motherboard model requires its own BIOS version, so an incorrect or slightly different BIOS version can cause significant problems.

If something goes wrong such as a computer losing power during the update, it can eventually brick your computer and cost hundreds to repair.

Even a correct BIOS version may cause boot problems because not all BIOS updates are tested as thoroughly as the one that came with your computer.

How to safely update BIOS?

Each manufacturer has its instructions for updating a BIOS. Some manufacturers offer utilities that can update BIOS directly inside Windows by running an executable file (you can check its updated guide: Dell, HP, Lenovo, Asus, etc.), but we strongly recommend updating BIOS from a USB flash drive to avoid any problems.

Flashing your BIOS from within Windows can be very risky. Some background applications and system freezes may interfere with BIOS updates, which will cause the process to fail and corrupt your BIOS.

Step 1: Check your BIOS Version

Before updating BIOS, you need to check your current version of BIOS and compare it with the latest version on your motherboard’s support page.

  1. Type msinfo in the search box and open System Information.
  2. Check your BIOS Version/Date.
  3. Type cmd in the search box, open Command Prompt, and then enter the following command to get your serial number.

Note down the system serial number (also called service tag), which is an alphanumeric character code you may need later.

Step 2: Download the latest version of BIOS

Go to your manufacturer’s support website to download the latest BIOS version.

  • Dell
  • Asus
  • HP
  • Lenovo
  • Other major BIOS vendors


  1. Go to the Dell Drivers & Downloads page, enter the serial number from step 1 and start searching.
  2. Scroll down to the search results, and select BIOS under Category. Then it will display the available BIOS version for you. Check its RELEASE DATE and Version to ensure it’s the new version compared to your current one, and click Download.


  1. Enter the Asus Support page and your product model name.
  2. Enter your PC’s model name and select the product list. (M409BA, for example.)
  3. This will take you to the support page for your PC.
  4. Or you can select your product series and model, then click Driver & Utility.
  5. Go to the Driver & Utility > BIOS & FIRMWARE. Then click the Download button if this BIOS version is the one you need.


  1. Go to the HP Customer Support page, and select your product.
  2. Enter the serial number you got from Step 1 and start searching.

Tips: Other methods to find HP product serial numbers.

  1. Expand the BIOS section, check its version and date, then click Download.


  1. Go to the Lenovo PC Support page.
  2. Enter the serial number or let Lenovo detect it for you.
  3. Click Drivers & Software > Manual Update > BIOS/UEFI.
  4. Check the version and date of the available BIOS update, then download it to your computer.

Other major BIOS vendors

Download the latest BIOS from the manufacturer’s website.

  • American Megatrends (AMI)
  • Gigabyte
  • Phoenix Technologies

Step 3: Flash your BIOS

The BIOS flashing process varies by manufacturer. Therefore, for safety concerns, you can check the updating details of each BIOS manufacturer. However, we’ll walk you through the basics.

Extract the downloaded BIOS file and copy it to a USB disk.

  1. The BIOS file should be copied onto your USB’s root directory (not in a separate folder).
  2. Please remember NOT to rename the file at all.
  3. The file should usually include an installation guide, such as a README.txt. You’d better read these instructions carefully.
  4. Leave the USB plugged into your computer during the update process.
  5. Insert your USB flash driver and boot into BIOS by pressing the hotkey repeatedly when your computer starts.
  6. The BIOS key is F12/F2 for most computers such as Dell.
  7. Asus, MSI, and Gigabyte: Delete.
  8. HP: ESC.
  9. Launch your BIOS update tool or flashing tool. Each BIOS has a different way of accessing the update tool.

Make sure to back up your PC’s existing firmware to your flash drive if possible in case something goes wrong.


  1. Use the arrow keys to select USB Storage Device and press Enter.
  2. At the command prompt, type the full BIOS filename, e.g., O9010A12.exe, and press Enter key.
  3. Follow the BIOS Update Utility screen instructions to complete the update process.


  1. Press F7 to open Advanced Mode.
  2. Choose Advanced, then select ASUS EZ Flash 3 Utility/Start EZ Flash.
  3. Select your USB with the extracted BIOS file from the storage device list.
  4. Select the BIOS file and confirm that you wish to read this file.
  5. Confirm that you wish to update the BIOS.


  1. Click Firmware Management or BIOS Management on the HP PC Hardware Diagnostics UEFI screen.
  2. Select BIOS Update.
  3. Click Select BIOS Image To Apply, then select HP_TOOLS – USB Drive.
  4. Select Hewlett-Packard > BIOS > Current.
  5. Select the BIOS update file that matches the System Board ID.
  6. Apply Update Now


  1. Navigate to M-Flash and agree to auto-reboot the system in Flash mode.
  2. Select the USB drive with the BIOS file you extracted earlier.
  3. Select the BIOS file.
  4. Accept the prompt.
  5. Re-apply your settings.


  1. Navigate to Q-Flash – you may need to press the ALT key to bring up the Q-Flash shortcut from the BIOS menu.
  2. Select Update BIOS.
  3. Select the extracted BIOS from your storage drive.
  4. Press Enter and agree to update your BIOS.
  5. Wait patiently for the update to finish, and make sure not to shut off your PC during this process.
  6. Restart your computer when prompted to or wait for your computer to restart automatically.


We recommend updating your device drivers to improve computer performance substantially, especially for gamers.

As your hardware and operating system translator, device drivers usually need an update to do a good job.

To update a device driver, you can always go to the manufacturer’s website to download the correct and latest driver and install it step by step. However, if you don’t have time or patience, you can do it automatically with DriverSol and Outbyte Driver Updater.

  1. Download and install Outbyte Driver Updater.
  2. Run Outbyte Driver Updater and click the Scan Now button. It will scan your computer and detect any problem drivers.
  3. Click the Update button next to your graphics card driver to download the correct version of that driver automatically, then you can manually install it (you can do this with the FREE version).
  4. Or click Update All to automatically download and install the correct version of all the missing or outdated drivers on your system.
  5. Restart your computer for the changes to take effect.

Feel free to drop us a comment if you have any questions or suggestions.