Most people end up looking for the BIOS because something specific needs changing: the boot order, so a USB installer will load; a virtualization setting an app is complaining about; or Secure Boot and TPM, because Windows 11 will not install without them. The keyboard shortcut you press at startup still works on most laptops, but on a modern machine it is no longer the most reliable way in.
This guide covers both routes: the per-brand startup keys, and the Windows route through Advanced startup that bypasses the timing problem entirely. It also covers why Fast Startup so often eats the key press, and what to do once you are inside the firmware.
BIOS or UEFI? Almost every laptop sold in the last decade ships UEFI firmware, not a true legacy BIOS. Manufacturers still label the setup screen “BIOS Setup”, so the words are used interchangeably here — but the distinction matters when a guide tells you to switch between Legacy/CSM and UEFI boot modes.
What’s Inside
- 1 – What the BIOS/UEFI Actually Controls
- 2 – BIOS Key for Each Laptop Brand
- 3 – Open UEFI Firmware Settings From Windows 11
- 4 – The Shift + Restart Shortcut
- 5 – Why Fast Startup Blocks the BIOS Key
- 6 – Secure Boot and TPM Settings for Windows 11
- 7 – Getting Into the BIOS When the Laptop Will Not Boot
- 8 – What Not to Change in the BIOS
- 9 – Final Thoughts on Entering BIOS Setup on a Laptop
What the BIOS/UEFI Actually Controls
The firmware is the first code that runs when you press the power button. It initializes the hardware, runs the power-on self-test (POST), and then hands control to whatever bootloader it finds. If it detects a fault before that handoff, it stops and shows an error such as “No boot device found” rather than starting Windows.
These are the settings people usually go in for:
- Boot order: making the laptop boot from a USB drive to install or repair an operating system.
- Secure Boot: required to be available for Windows 11, and often turned off by someone installing Linux.
- TPM / security chip: listed as PTT on Intel platforms and fTPM on AMD, and disabled on plenty of older machines by default.
- SATA operation mode: AHCI versus RAID/Intel RST, a common cause of a drive being invisible to a Windows installer.
- Virtualization: Intel VT-x or AMD-V, needed by virtual machines, Android emulators and WSL.
- Built-in hardware diagnostics: many vendors put a memory and storage test in the firmware itself.
Note what is not on that list. Laptop firmware generally does not expose CPU multipliers or memory timings, so overclocking advice written for desktop motherboards does not transfer.
BIOS Key for Each Laptop Brand
Power the laptop on and tap the key repeatedly from the moment you press the power button. Holding it down can register as a stuck key on some firmware; tapping every half second is more reliable than one well-timed press.
| Brand | Setup key | Boot menu |
| HP | Esc, then F10 | Esc, then F9 |
| Dell | F2 | F12 |
| Lenovo (ThinkPad) | F1 or Enter, then F1 | F12 |
| Lenovo (IdeaPad/Yoga) | F2, or the Novo pinhole button | F12 or Novo button menu |
| Acer | F2 | F12 |
| ASUS | F2 or Del | Esc |
| MSI | Del | F11 |
| Samsung | F2 | Esc |
| Microsoft Surface | Hold Volume Up while powering on | Hold Volume Down while powering on |
| Framework | F2 | F12 |
Two of these are worth spelling out. HP’s route is a two-stage one: Esc opens the Startup Menu, and F10 from there opens BIOS Setup — pressing F10 alone works on many models but not all, which is why so many HP owners conclude their key is broken. Dell documents tapping F2 when the Dell logo appears, with F12 for the one-time boot menu.
On Lenovo consumer laptops the Novo button is often the only route that works: a recessed pinhole next to the power connector or on the side, pressed with a paperclip while the laptop is fully off, which opens a menu containing BIOS Setup and Boot Menu.
If the key does nothing, the key is probably not the problem. On a laptop with an SSD and Fast Startup enabled, the window in which the firmware listens for a key press can be under a second. Use the Windows route below instead of hammering F2 harder — it lands in the same firmware screen.
Open UEFI Firmware Settings From Windows 11
This is the method to use first on any laptop that still boots. There is no timing involved, and it works identically across brands. Microsoft documents the path in its own guidance for enabling Secure Boot on Windows 11.
- Open Settings (Windows key + I).
- Go to System > Recovery.
- Next to Advanced startup, select Restart now, and confirm.
- On the blue recovery screen, choose Troubleshoot.
- Choose Advanced options.
- Choose UEFI Firmware Settings, then Restart. The laptop reboots straight into its BIOS setup screen.
The equivalent path on Windows 10 is Settings > Update & Security > Recovery > Advanced startup > Restart now, which is the route Dell documents for reaching system setup from Windows. Everything from the Troubleshoot screen onward is the same. Windows 10 stopped receiving security updates in October 2025, so if you are on that path there is a separate decision to make about the operating system itself.
The Windows 10 Route in Screenshots
These screens are from Windows 10, where Recovery sits under Update & Security rather than under System. On Windows 11 the Settings app looks different and the page is Settings > System > Recovery, but from Restart now onwards the screens match.
On an Older Windows 8 or 8.1 Machine
Windows 8 and 8.1 reached end of support in January 2023, and their Charms-bar settings interface does not exist in any current version of Windows. The route was Settings > Change PC settings > General > Advanced startup > Restart now, arriving at the same Troubleshoot > Advanced options > UEFI Firmware Settings screens described above. These screenshots are kept for reference only.
When UEFI Firmware Settings Is Missing
If that tile is not on the Advanced options screen, the usual explanation is that Windows was installed in Legacy/CSM mode rather than UEFI mode. Windows only offers the shortcut when it booted through UEFI.
Check by pressing Windows key + R, running msinfo32, and reading the BIOS Mode line in System Summary. If it says Legacy, the startup key is your only route in, and converting the disk to GPT is a prerequisite for Secure Boot and therefore for Windows 11.
The Shift + Restart Shortcut
Shift + Restart is the fast version of the same thing, and its real advantage is that it works from the sign-in screen — you do not need to be logged in.
- From the desktop or the sign-in screen, click the Power icon.
- Hold Shift and click Restart. Keep Shift held until the recovery screen appears.
- Follow Troubleshoot > Advanced options > UEFI Firmware Settings > Restart.
There is a command-line equivalent that does exactly the same job. Open Command Prompt or Terminal as administrator and run shutdown /r /o /t 0, where /r restarts, /o boots to the advanced options menu, and /t 0 skips the one-minute delay. It is useful in a script or over a remote session.
The same Advanced options screen also holds Startup Settings, a different branch that controls how Windows itself starts — safe mode, boot logging and similar — rather than opening the firmware. It is worth recognizing so you do not follow it by mistake when you are after the BIOS.
Why Fast Startup Blocks the BIOS Key
Fast Startup is a hybrid shutdown. Rather than powering down fully, Windows logs you out and hibernates the kernel session to disk, so the next start skips most of the initialization work. That saved time comes out of the firmware’s POST phase — the phase in which it watches for F2 or F10.
The practical result is that “Shut down” does not produce a cold boot. Two workarounds do:
- Choose Restart rather than Shut down. A restart is always a full boot, Fast Startup or not.
- Hold Shift while clicking Shut down, which forces a genuine full shutdown for that one occasion.
To turn it off permanently, go to Control Panel > Hardware and Sound > Power Options > Choose what the power buttons do, click Change settings that are currently unavailable, and clear Turn on fast start-up. Boot times get slightly longer; dual-boot setups and external drives tend to behave better, because a hibernated Windows leaves its filesystems locked.
Two other things swallow the key press. USB keyboards on a dock or hub are often not initialized early enough in POST, so use the built-in keyboard. And on some HP and Lenovo models the top row is media keys by default, meaning F10 sends a volume command unless you hold Fn as well or flip the Action Keys setting in the firmware.
Secure Boot and TPM Settings for Windows 11
These two are the reason a lot of people open the firmware at all now. Microsoft has stated that the TPM 2.0 requirement for Windows 11 is a non-negotiable standard, so a machine failing the check has to be fixed in firmware, not worked around in Windows.
Checking the Current State First
- Secure Boot: run msinfo32 and read Secure Boot State. “Unsupported” usually means Legacy BIOS mode rather than missing hardware.
- TPM: press Windows key + R and run tpm.msc. It reports whether a TPM is present, ready for use, and which specification version it implements.
Turning Them On in the Firmware
The TPM setting hides under a different name on nearly every brand. Look in the Security or Advanced menu for PTT or Intel Platform Trust Technology on Intel machines, fTPM or AMD fTPM switch on AMD, and Security Device Support or TPM Device as generic labels. Most laptops from roughly 2016 onward have the capability built into the chipset even when it ships disabled.
Secure Boot lives in a Boot or Security menu. Microsoft’s own instruction is that a PC running in Legacy or CSM mode must be switched to UEFI boot mode before Secure Boot can be enabled, and that UEFI should be first in the boot order where both modes are offered.
Do not switch Legacy to UEFI on a working install without converting the disk first. A Windows installation on an MBR disk will not boot in UEFI mode. Windows includes MBR2GPT for the conversion, and you want a full backup before you run it — getting this wrong produces an unbootable laptop, not an error message.
Enabling the TPM after Windows is installed is safe and does not touch your data. If BitLocker is already on, though, suspend it before changing any firmware security setting, or the next boot will ask for a recovery key you may not have to hand.
Getting Into the BIOS When the Laptop Will Not Boot
With Windows unavailable, the Settings route is gone and the startup key is all you have. A few things improve the odds.
- Disconnect every external device — dock, hub, USB drives, second monitor. Firmware sometimes stalls enumerating them before it reads the keyboard.
- Hold the power button for 15 to 20 seconds with the laptop off and the charger unplugged, then plug in and try again. This drains residual power and clears a hung power state.
- Start tapping the key before the screen lights up, not after the logo appears. By the time the logo is visible the window is often closing.
- Interrupt the boot three times in a row — power on, hold the power button to kill it as Windows starts loading — and Windows 11 and 10 will boot into the recovery environment on the fourth attempt, from which Troubleshoot > Advanced options > UEFI Firmware Settings is available.
That last one is the same mechanism used to reach Safe Mode on a laptop that will not start normally, and it needs no working keyboard timing at all. If the machine never reaches the logo, the problem is hardware rather than firmware access, and the vendor’s built-in hardware diagnostics are the next step.
What Not to Change in the BIOS
Note the exact name and value of any setting before you alter it. Firmware has no undo, and “Load Setup Defaults” restores the manufacturer’s values, not the ones you had five minutes ago.
- SATA operation mode: switching from Intel RST to AHCI on an installed Windows produces an immediate boot failure unless the driver is prepared first.
- A BIOS supervisor password: on most business laptops this cannot be cleared by removing the CMOS battery. Forgetting it can mean a mainboard replacement.
- Firmware updates over battery: keep the charger connected. A flash interrupted by a flat battery is the classic way to brick a laptop.
- Disabling the internal keyboard or trackpad: easy to do, awkward to undo on a machine with no working input device.
Save with F10 on most firmware, or use the Exit menu. Escaping without saving discards everything, which is the correct move whenever you are unsure what you just changed.
What is the BIOS key for HP, Dell, Lenovo and Acer laptops?
Dell and Acer use F2. HP uses Esc to open the Startup Menu and then F10 for BIOS Setup. Lenovo ThinkPads use F1, while IdeaPad and Yoga models use F2 or the recessed Novo button pressed with a paperclip while the laptop is off. Tap the key repeatedly from the moment you press power.
Why does pressing F2 or F10 do nothing on my laptop?
Usually Fast Startup. Windows hibernates the kernel on shutdown instead of powering off, which shortens the window in which the firmware listens for a key press to well under a second on an SSD. Use Restart rather than Shut down, or hold Shift while clicking Shut down to force a genuine cold boot. A USB keyboard on a dock and a media-key top row are the other two common causes.
How do I get into the BIOS without pressing any key at startup?
Go to Settings > System > Recovery > Advanced startup > Restart now, then Troubleshoot > Advanced options > UEFI Firmware Settings > Restart. On Windows 10 the first part of the path is Settings > Update & Security > Recovery. Holding Shift while clicking Restart reaches the same screen and works from the sign-in page.
Why is UEFI Firmware Settings missing from Advanced options?
Windows only shows that tile when it booted in UEFI mode. If the install is in Legacy/CSM mode the option never appears. Run msinfo32 and check the BIOS Mode line to confirm. On a Legacy install the startup key is the only route in, and the disk needs converting to GPT before Secure Boot or Windows 11 become possible.
Where is the TPM setting in the BIOS?
Under a different name on almost every brand. Look in the Security or Advanced menu for PTT or Intel Platform Trust Technology on Intel laptops, fTPM on AMD, or generic labels such as Security Device Support and TPM Device. Most laptops from around 2016 onward have it in the chipset even if it ships disabled. Check the current state first by running tpm.msc.
Is it safe to enable Secure Boot on a laptop that is already running Windows?
Yes if the machine is already booting in UEFI mode — enabling Secure Boot alone does not affect your files. It is not safe to switch from Legacy/CSM to UEFI mode on an existing install, because a Windows installation on an MBR disk will not boot that way. Convert the disk to GPT first, with a backup in place. Suspend BitLocker before changing any firmware security setting.
How do I access the BIOS if the laptop will not start Windows at all?
Unplug every external device, hold the power button for around 20 seconds with the charger disconnected to drain residual power, then tap the setup key from the instant you power on. If Windows partially loads, interrupting the boot three times in a row makes it start in the recovery environment on the fourth attempt, which contains the UEFI Firmware Settings option.
Can I overclock my laptop from the BIOS?
Generally no. Laptop firmware rarely exposes CPU multipliers or memory timings, and where a gaming model offers a performance profile it is a vendor preset rather than manual control. Overclocking guides written for desktop motherboards do not transfer to laptops.
Final Thoughts on Entering BIOS Setup on a Laptop
If the laptop boots, go through Settings > System > Recovery > Advanced startup and skip the timing game entirely. Save the brand-specific key for the machines that will not reach Windows, and reach for the Shift-shutdown trick before you conclude the key is dead.
Once you are in, change one setting at a time and write down what it was. That single habit prevents most of the situations where firmware access becomes an emergency rather than an errand.
