How to Change Boot Order in BIOS: Step-by-Step Guide

How to Change Boot Order in BIOS: Step-by-Step Guide

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  • The boot order determines which devices your computer checks first for starting up the operating system.
  • You can change the boot order in your computer’s BIOS setup by following a few simple steps.
  • Remember to save your changes in the BIOS so the new boot order takes effect.

Changing the boot order of your computer’s bootable devices, such as your hard drive, USB flash drive, floppy drive, or optical drive, is straightforward.

Lifewire / Derek Abella

Why Change the Boot Order?

You may need to change the boot order for various reasons, such as when using data destruction tools, launching bootable antivirus programs, or installing a new operating system.

The BIOS setup utility is where you change boot order settings.

The boot order is a BIOS (Basic Input/Output System) setting, meaning it’s operating-system independent. Whether you use Windows 11, Windows 10, another Windows version, Linux, or another OS, these instructions apply universally.

How to Change the Boot Order

Follow these steps to change the boot order in your BIOS. Adjusting the boot sequence changes the order in which devices are booted.

Step 1: Turn on or Restart Your Computer

Turn on or restart your computer and look for a message during the Power-On Self-Test POST that indicates a specific key, usually Del or F2, to press to access the BIOS setup utility. Press this key promptly when you see the message.


Power On Self Test (POST).

Step 2: Enter the BIOS Setup Utility

Once you’ve pressed the correct key, you’ll enter the BIOS Setup Utility.


BIOS Setup Utility Main Menu.

BIOS utilities vary in appearance, so yours may look different. However, they all consist of menus containing various settings for your computer’s hardware.

In this BIOS example, menu options appear horizontally at the top, hardware options are central, and navigation instructions are at the bottom.

Following your BIOS utility’s navigation instructions, locate the option to change the boot order. In this example, the option is within the Boot menu.

The location of boot order options varies across BIOS setup utilities. It may be labeled as Boot OptionsBoot, or Boot Order, and it may also be located within general menus such as Advanced Options, Advanced BIOS Features, or Other Options.

Step 3: Find the Boot Order Options in BIOS

Locate and navigate to the boot order options in BIOS.


BIOS Setup Utility Boot Menu (Hard Drive Priority).

In most BIOS setup utilities, the options may resemble the provided screenshot.

Any bootable hardware connected to your motherboard, such as your hard drive, floppy drive, USB ports, and optical drive, will be listed.

The listed order of devices is the sequence your computer follows to locate operating system information, known as the “boot order.”

With the example order, the BIOS will first attempt to boot from devices identified as “hard drives,” typically referring to the computer’s internal hard drive.

If no hard drives are bootable, the BIOS will then check for bootable media in the CD-ROM drive, followed by any attached media, such as a flash drive, and lastly, it will check the network.

To change the first boot device, follow the directions on your BIOS setup utility screen. In this example, use the + and keys to adjust the boot order.

Remember, your BIOS may have different instructions!

Step 4: Make Changes to the Boot Order

Next, you’ll make changes to the boot order.


BIOS Setup Utility Boot Menu (CD-ROM Priority).

As shown, the boot order has been changed from Hard Drive to CD-ROM Drive for demonstration.

BIOS will now look for a bootable disc in the optical disc drive first, before trying to boot from the hard drive, and also before trying to boot from any removable media like a floppy drive or flash drive, or a network resource.

Make the necessary boot order changes, then move to the next step to save your settings.

Step 5: Save Your BIOS Changes

To apply your preferences, save the changes in BIOS. Follow your utility’s instructions to navigate to the Exit or Save and Exit menu.


BIOS Setup Utility Exit Menu.

In this example, select Exit Saving Changes.

Step 6: Confirm Your Changes

Confirm and exit BIOS. You’ll likely see a confirmation prompt; select Yes.


BIOS Setup Utility Save and Exit Confirmation.

This Setup Confirmation message can sometimes be cryptic. The example above is pretty clear but I’ve seen many BIOS change confirmation questions that are so “wordy” that they’re often difficult to understand. Read the message carefully to be sure that you’re actually saving your changes and not exiting without saving changes.

Your boot order changes, and any other changes you may have made while in BIOS, are now saved and your computer will restart automatically.

Step 7: Start the Computer

Start your computer with the new boot order. Upon restart, the BIOS will attempt to boot from the first specified device. If it’s not bootable, it will proceed to the next device.


Boot from CD Prompt.

In Step 4, we set the first boot device to the CD-ROM Drive as an example. The screenshot illustrates the computer attempting to boot from the CD, requiring user confirmation. This occurs with some bootable CDs, unlike when booting Windows or other operating systems from a hard drive. Adjusting the boot order to boot from a disc such as a CD, DVD, or Blu-ray Disc (BD) is a common reason for this change, hence the inclusion of this screenshot.

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