Updating bios from usb
You can also locate your current BIOS while in Windows.Press Window Key R to access the “RUN” command window.Upon restart, enter the BIOS again using the method above.
Select "Update BIOS" from the "Internet option" drop-down menu. Then type “msinfo32” to bring up your computer’s System Information log.Your current BIOS version will be listed under “BIOS Version/Date”.Now you can download your motherboard’s latest BIOS update and update utility from the manufacturer’s website.The update utility is often part of the download package from the manufacturer. If one is not available, you can still use the USB stick to update your BIOS in an UEFI environment, if such is a feature of your motherboard.