Updating the BIOS on a PC Laptop: Easy Steps to Flash the BIOS

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Safely & easily update the BIOS in your laptop

Co-authored by Blain Gunter and Nicole Levine, MFA

Last Updated: March 28, 2025 Fact Checked

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Preparing to Flash

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Flashing the BIOS

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If you need to update the BIOS in your PC laptop, you're in luck—flashing the BIOS (or UEFI, in most newer laptops) is easier than ever. On most modern laptops, you can quickly download a BIOS flash utility that makes updating the BIOS or UEFI a breeze.^{[1]
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Blain Gunter
Computer Repair Specialist

Expert Interview} But even if your model requires you to use a USB flash drive for BIOS updates, the process is still pretty simple. This wikiHow article will walk you through the safest way to flash your BIOS or UEFI on any Windows laptop.

Step-By-Step Guide to Updating a Laptop BIOS

Check the BIOS update recommendations from your laptop manufacturer. Download the BIOS update for your laptop model from the manufacturer’s support site. Plug in the laptop, unplug any peripherals, and close all the programs. Open the BIOS file and follow the on-screen instructions to start the flash process. Reboot the computer once the flash is complete.

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Preparing to Flash

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1
Make sure you really need to flash the BIOS. Updating the BIOS (or UEFI) is simple, but not without risks—if anything goes wrong during the flashing process, you could render your computer unbootable. In most cases, you should only update the BIOS if a BIOS update is recommended by your manufacturer to resolve a specific problem, such as a security vulnerability or a hardware/compatibility issue.^{[2]
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- If your laptop manufacturer has a built-in support or driver update program (such as Dell Update or HP Support Assistant), run the update utility to check for required updates. If a BIOS update is not recommended, you likely don't need to update the BIOS.
- Some manufactures, including Lenovo, bundle certain models' required BIOS updates with Windows Update. Try running Windows Update to see if a BIOS update is available. If it is, just plug your laptop into a reliable power source, disable BitLocker if running, and follow the on-screen instructions to install the update.
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Check your manufacturer's BIOS update recommendations. The process to update the BIOS of each laptop is different, so you'll want to check your manufacturer's recommendations before you update.
- Some laptop manufacturers, including Dell and HP, offer BIOS updates along with regular updates using your built-in support app. If not (or you prefer a manual download), you can download the BIOS flash file manually from your laptop manufacturers' website.
- Depending on your model, you may be able to start the BIOS flash process from within Windows. If you can't boot into Windows (or there's no Windows-based app that can perform a BIOS flash for your model), you can add the BIOS to a USB flash drive.
- If your laptop has a UEFI instead of a BIOS, you may be able to update by booting into the UEFI and looking for an "Update" or "Download" option. This option requires internet access.
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Find your exact laptop model and BIOS version. Because each laptop's BIOS varies, you'll need to make sure you know the exact make and model of your computer. You'll also want to check the current BIOS version so you don't inadvertently downgrade or flash the same version when you're trying to upgrade. To find your specs:^{[3]
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- Press Windows key + S.
- Type system.
- Click System Information.
- You'll find the model next to the "System Manufacturer" and "System Model" values.
- Find the BIOS version next to "BIOS Version/Date."
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Disable BitLocker drive encryption. If you're using BitLocker, you'll have to disable it before you continue. Otherwise, BitLocker may not recognize your key the next time you start your laptop.^{[4]
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Research source} To disable BitLocker:
- Press Windows key + S.
- Type bitlocker.
- Click Manage BitLocker.
- Click Suspend protection.
- Click Yes.
- Make sure you have your recovery key available, as you may need it to turn BitLocker back on later.
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Download the BIOS update from your laptop manufacturer. Visit your manufacturer's support site and locate the drivers and downloads for your particular model. You'll usually find BIOS updates in a section called "BIOS" or "firmware." Double-check the version to make sure you're downloading the latest version.
- Acer: https://www.acer.com/ac/en/US/content/drivers
- Asus: https://www.asus.com/support/Download-Center
- Dell: https://www.dell.com/support/home/en-us/?app=drivers
- EVOO: https://evooproducts.com
- Gateway: https://www.gateway.com/gw/en/US/content/drivers-downloads
- HP: https://support.hp.com/us-en/drivers
- Lenovo: https://pcsupport.lenovo.com/us/en
- LG: https://www.lg.com/us/support/software-firmware-drivers
- Microsoft Surface: https://support.microsoft.com/en-us/surface/download-drivers-and-firmware-for-surface-09bb2e09-2a4b-cb69-0951-078a7739e120
- MSI: https://us.msi.com/support/download
- Razer: https://mysupport.razer.com/app/categories/m/pc/s/gaming-laptops
- Samsung: https://www.samsung.com/us/support/downloads
- Toshiba/Dynabook: https://support.dynabook.com/drivers
If the file you downloaded ends with .ZIP, you'll need to decompress the file. Just right-click the downloaded file, select Extract All, select a location, and then click Extract.^{[5]
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You should not attempt to flash the BIOS unless your laptop is plugged in. Flashing the BIOS is usually fairly fast, but any hiccups may cause the flash process to take longer. If you lose power during the flash, you can destroy the BIOS.
If you have any devices connected to your laptop's ports, including printers, smartphones, hubs, or dongles, unplug them before you flash the BIOS.
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Close all open programs. The fewer programs you have open right now, the better. Save your work and close all open programs before you continue.
- Most manufacturers recommend disabling your antivirus software before you launch a BIOS flash utility. If you're using Windows Defender, you shouldn't have to do this.

Part 2

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Flashing the BIOS

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In most cases, your BIOS download will contain an executable program that will start the installation. You'll typically have to agree to the terms to start the utility.
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Follow the on-screen instructions to begin the flash process. Most modern BIOS updates will walk you through restarting our PC into the BIOS flash utility, which will instantly flash the BIOS for you. This is the easiest scenario, and also the most common on recent laptops. However, the process varies by PC, so here are some other common scenarios:^{[6]
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- The program may walk you through the process of creating a bootable USB drive that you can use to flash the BIOS. If prompted, insert a blank USB drive to create a bootable drive, and then follow the on-screen instructions to boot the PC from the drive.
- If there's no application that starts the process for you, you'll need to copy the BIOS file directly to a formatted USB flash drive, and then restart the PC into the BIOS.^{[7]
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  Research source} From there, select an option called BIOS Flash Update (or similar—you may need to browse around in the menus to find the update option). Then, select your flash drive, followed by the file you copied to it, and choose the Flash, Start Easy Flash, or Flash Upgrade option (the name will vary) to start the flash.
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Follow the on-screen instructions to reboot when the flash is complete. The flash usually takes a few minutes but can take up to a half hour in some situations. When the flash is complete, your PC may reboot on its own, or you may be prompted to choose a Yes or OK option to reboot it yourself.^{[8]
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- Whatever you do, do not remove the laptop from its power source or attempt to stop the flash once it begins. This can corrupt the firmware and leave your PC unbootable.
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Resume BitLocker protection once your PC reboots. If you disabled BitLocker, you can reenable it easily:
- Press Windows key + S.
- Type bitlocker.
- Click Manage BitLocker.
- Click Resume protection.
- Click Yes and follow the on-screen instructions.

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Can I reset my laptop's BIOS through a pinhole?

Blain Gunter
Computer Repair Specialist
Blain Gunter is a Computer Repair Specialist and small business owner based in Bakersfield, California. He was first introduced to computers at the age of five and has over twenty years of experience in his field. He is both an IT consultant and computer repair technician and takes pride in his ability to troubleshoot anything. He works with hardware, software, Windows, macOS, GNU/Linux, and even vintage electronics.

Blain Gunter

Computer Repair Specialist

Expert Answer

Resetting the BIOS on some laptops is possible by inserting a paperclip into the reset hole on the bottom and holding it for 30 seconds. It's crucial to understand that this specific method may not be universally applicable to all laptops; different brands and models might have diverse procedures for resetting the BIOS. It's advisable to refer to the specific user manual or documentation for each laptop to determine the correct steps for a BIOS reset.

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How do I fix a computer that says there's no operating system?

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Make sure the HDD or SSD is connected, or take your laptop to its support.

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I have this RLG model MGS 1 laptop. I can't install Windows 7 32- or 64-bit , but I can use that same OS do installation on other laptops. The only OS its support is Win 8.1 with no sound. What can I do?

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Try going to boot setup and change the boot type from UEFI to legacy boot before installing the OS.

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