After you restart your computer, watch for a message during the POST about a particular key, usually Del or F2, that you’ll need to press to  enter SETUP. Press this key as soon as you see the message.

Here are some computer brands and their respective keys to access the BIOS

  • Dell: F2 or F12.
  • HP: ESC or F10.
  • Acer: F2 or Delete.
  • ASUS: F2 or Delete.
  • Lenovo: F1 or F2.
  • MSI: Delete.
  • Toshiba: F2.
  • Samsung: F2.
  • Surface: Press and hold volume up button.

After pressing the correct keyboard command from the previous step, you will enter the BIOS Setup Utility.

All BIOS utilities are a little different on each unit. No matter how your BIOS setup utility appears, they are all basically a set of menus containing many different settings for your computer’s hardware.

The specifics on where the boot order options are located varies from computer to computer. The menu option or configuration item might be called Boot Options, Boot, Boot Order, etc. The boot order option may even be located within a general menu option like Advanced Options, Advanced BIOS Features, or Other Options.

Locate and navigate to the boot order options in BIOS.

Any hardware connected to your motherboard that is able to be booted from — like your hard drive, floppy drive, USB ports, and optical drive — will be listed in the “Boot” tab

The order in which the devices are listed is the order in which your computer will look for operating system information — in other words, the “boot order.”

To change which device to boot first, follow the directions on the BIOS setup utility screen to change the boot order. In most computers, the boot order can be changed using the + and – keys.

Make whatever boot order changes you need, but in this case put USB (Removable Devices) on top of the order.

Before your boot order changes take effect, you will need to save the BIOS changes you made. To save your changes, follow the instructions given to you in your BIOS utility to navigate to the Exit or Save and Exit menu.
After setting your USB device as the first boot device, your computer will check it for boot information each time your computer starts. Leaving your computer configured this way shouldn’t cause problems unless you plan on leaving the bootable USB device attached all the time.

If you do not see the USB device listed within the boot options, you may need to reach out to the PC manufacturer for instructions for temporarily disabling Secure Boot in your BIOS settings.

If changing the boot menu or order doesn’t work, and your PC immediately boots into the OS you want to replace, it is possible the PC had not fully shut down. To ensure the PC fully shuts down, select the power button on the sign-in screen or on the Start menu and select Shut down.