Should You Update Your BIOS?

Unlike other software updates, BIOS updates should only be done when there is a specific reason: a security vulnerability fix, support for new hardware (a CPU you want to install), bug fix for a specific issue you are experiencing, or a feature you need. “Update BIOS for better performance” is not a valid reason — a failed BIOS update can render a computer unbootable. If your system works fine, leave the BIOS alone.

Step 1: Find Your Current BIOS Version

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    Press Windows + R, type msinfo32

    In the System Summary, look for BIOS Version/Date. Note the current version number. You will compare this to what is available on the manufacturer’s website.

Step 2: Find Your Motherboard Model

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    Note BaseBoard Manufacturer and BaseBoard Product

    Also in msinfo32: BaseBoard Manufacturer (e.g. ASUSTeK) and BaseBoard Product (e.g. ROG STRIX B550-F). You need these to find the correct BIOS update.

Step 3: Download the Update from the Manufacturer

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    Go to the manufacturer’s support page

    ASUS: asus.com/support, MSI: msi.com/support, Gigabyte: gigabyte.com/support, ASRock: asrock.com/support. Search your exact motherboard model. Navigate to BIOS downloads. Read the release notes for each version — identify if any version between yours and the latest addresses your specific need.

Step 4: Flash the BIOS

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    Use the manufacturer’s Windows-based utility (easiest)

    Most manufacturers provide a Windows-based BIOS flash utility (ASUS EZ Flash, MSI M-Flash tool for Windows, Gigabyte @BIOS). Download the utility and BIOS file. Run the utility, select the BIOS file, and follow instructions. The PC reboots and flashes during POST.

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    Or use USB flash method (most reliable)

    Format a USB drive as FAT32. Copy the BIOS file to the root of the USB drive. Reboot and enter BIOS (press Delete or F2 at startup). Find the BIOS update utility within the BIOS menu (EZ Flash, M-Flash, Q-Flash). Select the USB drive and BIOS file. Confirm and wait. Do NOT turn off the computer, unplug it, or interrupt the process.

Power is critical during BIOS updatesA power failure during a BIOS update can brick your motherboard permanently. Plug into a UPS (battery backup) or at minimum ensure power is stable. Do not use a laptop on battery during BIOS update — keep it plugged in. Some motherboards have dual BIOS chips for recovery from failed updates; check if yours does before proceeding.

Frequently Asked Questions

In the worst case: the PC will not boot (black screen, no POST). Some motherboards have a recovery BIOS chip or USB BIOS flashback feature that allows recovery without a working CPU. Check your motherboard manual for recovery options. If no recovery is available, the motherboard may need to be sent to the manufacturer or replaced. This is why BIOS updates should only be done when necessary and with preparation.
No — BIOS is firmware stored on a separate chip from your hard drive. Updating BIOS does not affect files stored on your drive. However, BIOS settings (overclocking, boot order, XMP/EXPO memory profiles) are typically reset to defaults after a BIOS update. Note your important BIOS settings before updating and re-apply them afterwards. Back up important data anyway as good practice before any significant system change.