How to Open, Enter, or Access BIOS or USB Boot Menu using a Hotkey. To configure your computer's hardware settings, you need to enter BIOS (Basic Input/Output System). This firmware interface allows you to adjust critical system parameters, such as setting up a USB boot or managing boot devices. Different manufacturers assign various BIOS hotkeys or key combinations that can be pressed during the startup process to access the setup menu.
However, there isn't a single standard way to get into BIOS for every system. This guide provides details on how to find the correct keyboard shortcuts to access your system settings.
Easily Access BIOS System Settings Using a Hotkey
What is BIOS?
The BIOS (Basic Input/Output System) is the foundational firmware of most computers, responsible for managing and initializing hardware when you power up your system. Located on a chip on the motherboard, BIOS is the first software that runs, performing tasks like checking hardware status during the Power-On Self-Test (POST).
Once your hardware passes the POST, BIOS locates and loads the bootloader to start the operating system. In addition to this, BIOS lets users enter a configuration menu where they can adjust hardware settings like boot order, system time, and CPU settings. It’s accessed via a specific keypress during startup.
Newer systems use UEFI (Unified Extensible Firmware Interface), a modern version of BIOS with faster boot times and more security features. Whether your system uses BIOS or UEFI, knowing how to access firmware settings is crucial for troubleshooting and system configuration.
How to Open BIOS or Enter System Setup
Depending on your computer's make and model, the process to launch the BIOS setup varies. Follow these general steps to open BIOS, enter the boot menu, or access and configure system settings:
- Restart or turn on your computer.
- During startup, look for a message that tells you which key to press to enter BIOS (e.g., F2, Del).
- Press the key immediately when prompted. If you miss it, restart and try pressing the key repeatedly as soon as the screen comes up.
- Once in the BIOS or UEFI setup, navigate the menu using your arrow keys.
- Make any necessary changes (e.g., adjusting the boot sequence), then save your settings and exit (usually done with the F10 key).
Keep in mind, changing BIOS settings can affect system stability. It’s best to only make changes if you understand their impact. Document any changes you make so they can be undone if necessary.
BIOS Hotkeys and Boot Menu Keys
The key to open BIOS differs by manufacturer. Below is a table with some common hotkeys to access BIOS system setup and the boot menu for different brands:
| Manufacturer | BIOS Hotkey | Boot Menu Key | Alternative Keys |
|---|---|---|---|
| Acer | F2 | F12 | Del |
| Asus | F2 | Esc | Del |
| Dell | F2 | F12 | |
| Gateway | F2 | F12 | |
| Gigabyte | Del | F12 | F2 |
| HP | Esc, F10 | F9 | |
| Lenovo (Consumer) | F2 | F12 | Fn + F2 |
| Lenovo (ThinkPads) | Enter, F1 | F12 | |
| MSI | Del | F11 | |
| Sony | F2 | Assist button (for VAIO models) | |
| Toshiba | F2 | F12 | Esc |
| Samsung | F2 | Esc | F12 |
| Fujitsu | F2 | F12 | |
| Intel NUC | F2 | F10 |
How to Change Boot Order in BIOS
If you need to boot from a USB drive or external device, you’ll need to modify the boot sequence in your system settings. To do this, enter the BIOS menu and follow these steps:
- Navigate to the Boot or Startup tab using your arrow keys.
- Select the device you want to boot from (USB drive, SSD, etc.).
- Use the appropriate keys (usually + or -) to change its priority in the boot order.
- Save your changes by selecting Save and Exit (often F10).
If your USB drive doesn’t appear in the list, ensure it’s connected before restarting. Some systems also offer a Boot Override feature in BIOS, letting you boot from USB without altering the main boot order.
Change Boot Drive Using Boot Menu Key
If you only need to boot from a USB drive once, you can often access a quick boot menu without entering BIOS. As mentioned in the previous chart, some of the most common boot menu keys are:
- Acer: F12
- Asus: Esc
- Dell: F12
- HP: F9
- Lenovo: F12
- MSI: F11
These boot menu shortcuts allow you to select your USB drive or other bootable media without needing to permanently change the boot order in BIOS.
Conclusion:
Accessing the BIOS setup, boot menu, or boot manager is an essential skill for configuring your system’s hardware. Whether you need to change the boot order to install a new operating system or modify other system settings, knowing the right BIOS entry keys for your system can save you a lot of time.
Remember to proceed with caution when altering BIOS settings, as incorrect changes can affect system performance. Always save your configurations and make note of any changes so you can reverse them if needed.
If you need additional help getting your USB drives detected and booted, see the post on "tricky BIOS bootable USB booting".