Asus: BIOS update with bootable USB stick

A bootable USB stick helps to carry out a BIOS update on your Asus. Read here what steps you need to follow.

Step 1: Download the DOS files for the BIOS update

In order to update your BIOS, you need a small user interface.

1. First go to biosflash.com.
2. Click "download" to download the tools you need.
3. Unzip the archive on your PC.
4. The "boot_usb_stick" folder contains all the tools and files that are required.
5. Since these files are hidden, you must first view them.

Step 2: Format the USB stick for the BIOS update

With the included tool "HP USB Disk Storage Format Tool" you can easily format the USB stick and make it bootable.

1. Connect your USB stick to the PC.
2. If there are still files on the stick, you should now back them up on the PC, as they will be deleted from the USB stick when formatting.
3. Open the "boot_usb_stick" folder and copy the "usbdos" folder to the desktop.
4. Start the "HP USB Disk Storage Format Tool" tool, which can be found in the "usbdos" folder.
5. Select the USB stick under "Device" and the option "FAT" under "File system". Under "Volume label" you can give the stick a name.
6. Then check the "" Create a DOS startup disk "and" using DOS system files located at: ". Enter the path to the "usbdos" folder here.
7. Formatting is started by clicking on "Start".

Step 3: Copy the BIOS data to the USB stick

Then copy the BIOS data for your motherboard to the bootable USB stick.

1. Go to the ASUS website.
2. Click on the "i" next to the input field and then "Select model manually".
3. Under "Motherboard", click "Motherboard".
4. Select the serial number and model you are using here.
5. Then click on "Drivers & Utilities" on the right side.
6. Select your operating system from the list.
7. Then click on "BIOS" and download the latest file. Finally, drag this onto the USB stick.

Step 4: Perform the BIOS update with the USB stick

Now restart your PC to update the BIOS.

1. To be able to boot from the stick, you must first change the boot sequence.
2. Then restart the PC.
3. The program now starts on its own. You can see the progress of the update by the bar.
4. Important: Do not restart the PC during the update process and do not disconnect the power supply! You risk damage to the motherboard that cannot be repaired!
5. After a successful BIOS update, the PC is automatically restarted.
6. Then switch to the BIOS and restore your desired settings.

This practical tip is based on Microsoft Windows 7 and the HP USB Disk Storage Format Tool in version 2.2.3. How you can find out the mainboard serial number using the registry can be read in our next practical tip.