The fastest way to enter BIOS on Windows 10

On most Windows 10 machines, you reach BIOS by restarting your computer and pressing a specific key repeatedly as it boots up — before Windows loads. The key varies by manufacturer: Dell and Lenovo machines usually respond to F2, HP and Asus typically use F10 or Del, and Acer often uses Del or F2. If you built your own PC, the key depends on your motherboard maker, which you can find in your manual or by searching "[your motherboard model] BIOS key" online.

The timing matters. Restart your computer, and as soon as you see the manufacturer's logo (Dell, HP, Lenovo, etc.), start pressing the key repeatedly — about once per second — until a blue or black screen appears with text menus. If Windows starts loading instead, you waited too long; restart and try again, pressing the key sooner.

If the function key method does not work, Windows 10 offers a second route through Settings. Open Settings, go to System, then Recovery, and look for "Restart now" under "Advanced startup". Your computer will restart into a menu where you can select "Troubleshoot", then "Advanced options", then "UEFI Firmware Settings". This method is slower but more reliable if you cannot time the key press correctly.

Key Takeaways

  • The key to press during startup depends on your computer's manufacturer — Dell and Lenovo use F2, HP and Asus use F10 or Del, and Acer uses Del or F2.
  • You must press the key repeatedly as your computer boots, starting when you see the manufacturer's logo and before Windows begins to load.
  • If you miss the timing window, restart your computer and try again, pressing the key sooner.
  • If the key method fails, you can reach BIOS through Windows Settings by going to System > Recovery > Advanced startup > Troubleshoot > Advanced options > UEFI Firmware Settings.
  • Once inside BIOS, you can view your hardware, check temperatures, and change boot order or security settings — but changes take effect only after you save and exit.

Finding your specific key if you do not know the manufacturer

If you bought your computer pre-built from a retailer, the manufacturer is usually printed on the case or visible when you start it up. Look for the logo that appears on the screen during startup — that is your BIOS key's manufacturer. If you built the computer yourself, you need the motherboard model, which you can find by opening Command Prompt (search "cmd" in Windows), typing wmic baseboard get product, and pressing Enter. That model number tells you which key to use.

You can also search online for "[your computer model] BIOS key" or "[your motherboard model] BIOS key" to confirm before you restart. This takes a minute but saves you from restarting multiple times if you guess wrong.

What happens when you enter BIOS

Once you are inside BIOS, you see a text-based menu with options like Main, Advanced, Security, Boot, and Exit. The exact layout varies, but the purpose is the same: you can view your hardware (CPU, RAM, storage), check temperatures, change the order in which your computer tries to boot (useful if you want to boot from a USB drive), enable or disable security features, and adjust power settings.

Most people enter BIOS only when they need to change the boot order — for example, to install Windows from a USB drive or to troubleshoot a startup problem. If you are just looking at your hardware specs, you can do that without making any changes. Use the arrow keys to navigate and Enter to select options. The Exit menu will show you how to leave without saving changes, which is what you want if you are just exploring.

Saving changes and exiting BIOS

If you make changes in BIOS, you must save them before you exit, or they will not take effect. Look for an option that says "Save and Exit" or "Save Changes and Reset". This is usually in the Exit menu. Your computer will restart, and the changes will explore when Windows loads.

If you change something and then realize you made a mistake, most BIOS menus have a "Discard Changes and Exit" or "Exit Without Saving" option. Use that to leave without explore your changes, then restart and try again.

Troubleshooting if you cannot get into BIOS

If neither the key press method nor the Windows Settings method works, your computer may have a BIOS password set, which prevents entry without the correct password. If you set this password yourself and forgot it, you will need to contact your computer's manufacturer for help — they can verify ownership and reset it, though the process takes time.

If your computer is very new or uses a find Boot feature, it may prevent you from accessing BIOS in the traditional way. In that case, the Windows Settings route (System > Recovery > Advanced startup > UEFI Firmware Settings) is more likely to work. If that also fails, check your computer's manual or contact the manufacturer's support line with your model number.

If you are trying to boot from a USB drive and cannot change the boot order in BIOS, some computers offer a one-time boot menu instead. During startup, look for a message that says "Press [key] for boot menu" — this is different from the BIOS key and lets you choose which device to boot from without entering BIOS itself.

BIOS versus UEFI: what you might see

Newer Windows 10 computers use UEFI (Unified Extensible Firmware Interface) instead of the older BIOS standard. UEFI looks similar — still text-based menus — but it is faster and supports larger hard drives. The steps to enter it are the same: restart, press the key, and navigate with arrow keys. The menus and options are in the same places, so you do not need to learn anything different.

Some computers let you switch between UEFI and legacy BIOS mode in the settings, though this is rare on modern machines. If you see an option for "UEFI" or "Legacy" in your BIOS menu, leave it on UEFI unless you have a specific reason to change it — most modern hardware expects UEFI.

Frequently Asked Questions

What if I press the BIOS key and nothing happens?

You may have missed the timing window — restart and press the key as soon as you see the manufacturer's logo, before any text appears. If that does not work, try the Windows Settings method: System > Recovery > Advanced startup > Troubleshoot > Advanced options > UEFI Firmware Settings. This route does not depend on timing.

Can I change my hardware settings in BIOS without breaking anything?

Most BIOS settings are safe to view, but changing things like CPU voltage, RAM timing, or boot order can cause problems if you do not know what you are doing. If you are just checking your hardware or changing boot order, you are in safe territory. If you are adjusting power or performance settings, write down the original values before you change them so you can revert if something goes wrong.

Do I need to enter BIOS to update my firmware?

Not always. Many manufacturers let you update firmware from Windows using a utility or Windows Update. Check your computer maker's support website for your specific model. If a firmware update requires BIOS access, the instructions will tell you — you do not need to guess.

Why does my computer ask for a BIOS password when I try to enter?

Someone set a BIOS password on your computer, which prevents unauthorized access to hardware settings. If you set it and forgot it, contact your computer's manufacturer with proof of ownership — they can help you reset it. If you did not set it, contact whoever set it up for you.

Is it safe to change the boot order in BIOS?

Yes. Changing which device your computer tries to boot from first is one of the safest BIOS changes you can make. It does not affect your files or Windows installation — it just tells your computer where to look first when it starts up. You can always change it back if you need to.