What Is Usb FDD In Bios? Everything You Need to Know

What Is USB FDD in Bios

During the booting process of a computer, BIOS plays a significant role. It identifies the hard drive containing the OS of the device and eventually functions to slot it into the device memory. If you are curious about BIOS boot options like the USB FDD, you are at the right place.

Now, what is USB FDD in BIOS?

In BIOS, there are a couple of USB boot options. One of these options is the USB FDD. Here, FDD stands for “Floppy Disk Drive.” Therefore, USS FDD in BIOS is an option you can boot from if you want to do it from a floppy disk. You have to ensure it is connected to one of your USB ports first.

BIOS And Its Boot Options

BIOS or Basic Input/Output System is a built-in firmware that is responsible for booting up a computer system. To put it simply, it’s a pre-built operating system that comes with a motherboard. 

BIOS acts as a bridge between the computer and its attached devices in order to successfully run the machine. The internal data transmission between the computer system and connected devices, like hard drive, keyboard, mouse, and video adapter, is managed by the BIOS.

Entering the BIOS interface is quite simple. You have to press either F1, F2, F10, or DEL, depending on the manufacturer of your motherboard, while booting up your PC. 

Despite being easier to access, most BIOS interfaces are not user-friendly. A typical BIOS interface is a hub of developer tools that one shouldn’t tamper with unless they know what they’re doing.

However, the option we just discussed is from the latest BIOS boot menu. There are some older options that are still in use, and the USB FDD option is one of those.

The Other USB Boot Options

Let’s talk about the previous boot options available for USB devices. You can still use these options if your computer system has a simpler BIOS configuration or if you don’t have the “Menu” option.

The three older options to be discussed are as follows:


Of the three options, this one is the most outdated. This option was mostly used when floppy disk drives in computers were still in vogue. Back in the day, USB interfaces were not available. That is why this option was used for USB booting to BIOS or DOS. 


The USB-HDD is the most advanced of the three. One is most likely to select this option if their BIOS offers it. If your BIOS is capable of offering this option, it means it can also determine the framework of the USB flash drive. 


The USB-ZIP option is mostly used when the system is incapable of offering the USB-HDD option. 

However, there is a catch here. You will not be able to readily use this boot method instead of the HDD one. You will have to tweak the framework of your USB flash drive to make it work.

Frequently Asked Questions 

1. How to boot from a USB Drive or CD on any computer?

At first, restart your computer. Then, select a boot device or order. After choosing the right drive from there, follow the directions onwards and save the changes.

2. Which USB boot option should I use?

If your BIOS provides a couple of USB options to boot from, you should pick one, depending on how your flash drive is set up. Choose the option that is compatible with the setup of your flash drive.

3. How do I make a USB drive bootable?

You can make any USB drive bootable by using the softwares like Rufus, YUMI, UNetBootin, etc. Using the right software, you have to inscribe all your ISO files to your USB drive. 

4. How do you know if a USB is bootable?

It is easy to know if a USB is bootable or not. In the latest version of Windows, you can check the bootable status from the disk manager, Command Prompt application, or the Windows PowerShell application.

5. Can all computers boot from USB?

No, all computers cannot boot from USB. It depends on the motherboard. If the motherboard is compatible with the USB device involved in booting, the computer will be able to boot from USB.

Bottom Line

So now you know what is USB FDD in BIOS. It’s basically one of the many boot options your BIOS will provide you. If your computer has a floppy disk drive and you want to boot from it, you may select this option. This option is only applicable if your device has a floppy disk drive.

However, since it is more practical, you should select one of the options from the new menu. All the best!

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