How to Change the Boot Order from the BIOS
To install Windows or Linux from a USB, with the quick boot menu as an alternative.
You need your machine to start from a USB or DVD instead of the usual disk — for example, to install Windows or Linux from scratch.
- Enter the BIOS/UEFI (your manufacturer's specific key, or from Windows if it starts up normally).
- Look for the "Boot" tab.
- Find "Boot Order" or "Boot Priority".
- Move the USB/DVD to the first position (with +/- keys or dragging, depending on the BIOS).
- Save and restart (usually F10).
Tip: many modern BIOS/UEFIs offer a quick boot menu with a specific key (often F12 or Esc) that lets you choose the boot device just ONCE, without changing the permanent setting — more convenient if you only need it for a one-off occasion.
Note: after finishing installing whatever you needed from USB, remember to put the main disk back as the first option, or the machine will try to boot from the USB every time it's connected.
Frequently asked questions
Do I need to change the order permanently to install from USB?
Not always — many BIOS/UEFIs offer a quick boot menu (F12 or Esc) to choose the device just once, without modifying the permanent setting.
What happens if I forget to put the main disk back as the first position?
The machine will try to boot from the USB every time it's connected on power-on, which can be confusing or interrupt normal startup if the USB doesn't have a valid operating system on it.