Troubleshoot Bootable BIOS USB Key With Ease

Troubleshoot Bootable BIOS USB Key With Ease

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    Hope this blog post helps you when you spot a bootable USB drive with BIOS.

    NoteRead and advice on how to create a bootable Pendrives / USB stick (including ms-dos system files) to update the BIOS.

    see below: How to update BIOS: step-by-step instructions
    see also: updating the bootable BIOS from CD
    see also: Updating BIOS via DOS Boot Disk

    • Operating system: Windows XP, Vista, 7 and 8. The HP_USB_Disk_Storage_Format_Tool should not work on Windows 10!
    • The laptop / motherboard BIOS must support bootable USB sticks – and this should be the case for most models under 4-5 years old. If the USB drive is recognized during the boot process, my BIOS will integrate it as a removable drive or as a pending drive.
    • BIOS Ultimate Boot version:
      – usbdos (folder contains 3 hidden files! MS-DOS program, io.sys and msdos.sys)
      – HP_USB_Disk_Storage_Format_Tool v2.2.3.exe (Hewlett-Packard Format Utility for USB Drives)
      DOWNLOAD Maximum BIOS Boot Edition – 1.2 MB
    • Flashtool is BIOS programming software (.EXE as file extension) that programs BIOS data into a BIOS chip and a BIOS file. You must download both files:
      – Motherboard purchased in the region of origin: on the website of the manufacturer of the motherboard, laptop or
      – or branded PC: from most laptop / branded computer websites.
      These two files must be specially designed for the DOS operating system! If the manufacturer provides Windows-only files, you run the risk of updating the BIOS either directly in Windows, or flashing the old BIOS chip, or choosing a new programmed BIOS chip.
    • Open Ultimate BIOS-Boot-Edition and boot_usb_stick folder.
    • copy the usbdos file to your hard drive.
    • Run the HP USB Hard Drive Formatting Workshop tool.
    • Select your USB storage device under Device.
    • Select FAT-32 under File System and check the appropriate box to check the box next to Create DOS Financial Services Disk.
    • Paste the path to the usbdos folder using the DOS personal data entries found under:.
    • Click the start button and wait for the tool to prepare the USB stick and copy the 3 system files.
    • Rename your flash tool filename often and you will see the BIOS file if it is longer than 8 characters (not the computer file extension!).
    • Copy Flashtool and BIOS files to USB stick.
    • First, do BIOS setup and change the boot sequence to USB stick / stick (look for a solution like boot sequence, first boot device, or something similar).

    • Insert a USB stick and continue with your PC. To be fair, MS-DOS starts up and you should see the famous DOS prompt (C: >).

    • Users can now initiate BIOS update. Keep in mind that it may be a good idea to back up your old BIOS.

    • See also: How to update BIOS: step-by-step instructions


    , your folder attribute is hidden. If you want to show your hidden files, you must disable the option: “Windows Explorer / Advanced options for individual folder options / Show / Show hidden files and folders” and directly disable the option ” “Hide protected administrative system files”.

    GODSCOOKIES Apr 22, 2020 6:17 PM

    I have an Acer and an Aspire 4830TG. Where can I get a custom BIOS with UEFI and so on?

    Alex Reid Jul 27, 2019 12:24 pm

    Does USB need to be bootable for BIOS update?

    To update the BIOS via DOS, you will need a dedicated bootable USB stick. Grab the updated BIOS and BIOS update utility that most people downloaded from the manufacturer’s website and copy them over to the latest bootable USB drive. Leave the USB stick connected to your computer. Then restart the system.

    Could you recommend me where I can find the link to the program in the BIOS to access the Samsung RF511 laptop model under Windows 10

    KileM 27.Jan.2017 16:39

    Dear forum members, I have the part number PSLB9U-047011 Toshiba Satellite Pro L300-EZ1521, which is definitely glued to the Toshiba logo. I found the hard drive and plugged it in – another laptop [as an external drive] for testing. The hard drive looks great because my husband and I can edit, view, copy and save music files. I have tried all the key combinations F2, FN, f12, + F, C + Power, 1 + Power to no avail. The only keys that seem to work are CTRL ALT + DEL when restarting the laptop, then the CAPS LOCK, FN keys. Maybe the problem is in the BIOS? Can you fix this problem by updating / flashing / restoring the BIOS? Your help is greatly appreciated. Hi KileM

    biosflash 5.Jan.2017 07:00

    You can use the “RMPrepUSB” tool to reactivate (blue button) the USB key.

    Klege January 5, 2017 06:41 am

    How do I boot old BIOS from USB?

    Press the power button on your computer.From the initial creation screen, press ESC, F1, F2, F8, or F10.If you want to invoke the BIOS setup utility, the setup values ​​page is displayed.Using the Start Step Start Arrow on your keyboard, select the LOAD tab.Move USB to the beginning of the boot sequence.

    I had to look closer and find what is written in red NOT FOR WORKING ON WINDOWS 10.

    biosflash Nov 19, 2016 10:59 PM

    @ wooxt3r
    Try or try UNetbootin to create a bootable USB stick. Live with FreeDOS another USB stick.

    wooxt3r Nov 19 07:25 PM
    bios bootable usb drive

    Hello, in 2016 I just had unwanted software bugs all the time, pick whatever I need for software, mine creates USB but when I click “Format” I get the message “Failed to format these drives.”

    bass @ nline Nov 9, 11:54 pm

    Please read your 2016 instructions carefully. I got a laptop or PC built with MSI, H55M-P33 Mobo (AMI BIOS version 1.9) coupled with an update to version 1.10. which adds support for 2.2TB + HDD and other newbies. It worked for me. Everything is not expensive. 5 stars. Great guide.

    Ifeanyi Ifemeje Kingsley 17.Oct.2016 23:48

    I updated my BIOS 209 for the Asus Zen N501JW manual when I lost power and hence my mostly black screen and key system was – the board was not working. If anyone can help me I would prefer this

    Rafat Siddiq October 3, 2016 02:15 AM

    Hey, my tablet has the Dell logo frozen and someone told me to hurry up with this bios USB program. I wanted to know if this works? Please provide a download link. Thanks

    biosflash Feb 21, 2016 07:03 AM

    I think you can answer yourself.

    Bones, February 20, 2016 5:32 pm

    Hello sir. They say to choose the device from which you want to boot. BUT what if I have neither video nor processing, and my PC often works?

    M. Collins Feb 16, 2016 03:35 AM

    When I tried the Winphlash window, I got a variable checksum error (104). I tried bootable Rufus with Flashdrive Winphlash16 but the BIOS ROM file could not be opened.

    M.Collins 16.Feb.2016 00:27

    So, very close … Direct instructions running under DOS, ‘PHLASH16 6912.ROM’ (insPhoenix DOS). … .. The utility worked fine, but the error “Unable to flash with loaded memory managers, HIMEM” remained. Not sure how to use HIMEM to remove sentences?

    biosflash 1.Dec.2015 06:33

    Because the motherboard manufacturer provides these files in the appropriate special version for your motherboard type, and I’m not a magician.

    zack 1.Dec. 01:57

    Can a USB drive be bootable?

    Connect your USB device to your computer using most of the available USB ports. It is best to create a large bootable USB stick or configure a third-party hard drive as bootable. You may be presented with a message to help you press a key on some boot devices before the computer boots from a flash drive or other USB device.

    Why is there only one pen in 2015?

    biosflash 20.Nov.2015 19:34

    Use a different USB port with PS / 2 keyboard or a different USB 2.0 connection (not 3.0!).

    sslinux November 20, 2015 5:08 PM

    Hi guys. I did everything but included a big issue for now. … that he says to go choose BIOS in addition to USB to boot. But I can’t open the BIOS. My keyboard is plus USB and it doesn’t work ..?

    biosflash Sep 28, 06:05 am
    bios bootable usb drive

    No, it shouldn’t work in 2015. Maybe a CD-ROM.

    duwek Sep 28, 2015 03:46 AM

    Thank you info sir. I still have a question when I turn on my computer I have a blank screenbut my personal port is the motherboard floppy slot. Can I install my personal BIOS via USB when the computer is empty? so USB can work like a floppy disk sir?

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    Drive Usb Inicializavel Do Bios
    Bios Zagruzochnyj Usb Nakopitel
    Bios Bootfahiges Usb Laufwerk
    Unidad Usb De Arranque Bios
    Bios Startbar Usb Enhet
    바이오스 부팅 Usb 드라이브
    Bios Opstartbare Usb Drive
    Bootowalny Dysk Usb Bios
    Unita Usb Avviabile Dal Bios