How to Enter BIOS or the Boot Menu on a Dell Computer
Beginner
Dell
Applies to: Windows 7, Windows 10, Windows 11
Dell
Applies to: Windows 7, Windows 10, Windows 11
The right key, timing, and what to do if tapping it doesn't work.
Before you start: save any open work and note down what you were doing when the problem started — that context helps if you need to search further or ask for help.
- Restart or power on the Dell, and immediately start tapping F2 repeatedly (not holding it down) — this opens BIOS Setup on virtually all Dell laptops and desktops.
- For the one-time boot menu instead (choosing which drive to boot from, without changing permanent settings), tap F12 repeatedly at the same point instead of F2.
- If neither key does anything, the tapping likely started too late or too early — power off completely, wait a few seconds, then start tapping the moment you press the power button, before the Dell logo even appears.
- On a Dell with a detachable or convertible keyboard, or if function keys aren't registering, check whether Fn+F2 or Fn+F12 is needed instead, since some models require the Fn modifier for F-keys by default.
- If you're locked out of the desktop entirely and need BIOS to troubleshoot, this method works independently of Windows, so a broken installation won't prevent it.
Still not fixed? Send us the details and we'll help you dig further, or browse related guides in Dell.
Frequently Asked Questions
Why would F2 or F12 not work on my Dell?
The most common reason is starting to tap too late — try starting the moment you press the power button, before the Dell logo appears, rather than waiting to see the logo first.
Is there a risk of damaging anything by entering BIOS?
No — simply entering BIOS Setup or the boot menu is completely safe. Only actively changing and saving settings you're unsure about carries any risk.
Related guides
Dell's Built-in Diagnostics Explained (SupportAssist & Pre-Boot Assessment)
A hardware test that runs independently of Windows, useful when you suspect a physical fault rather than a software problem.
Where to Get Official Dell Drivers (and Avoid Fake Ones)
Dell Command | Update and Dell's own support site — not a third-party "driver updater" tool.
How to Factory Reset a Dell Using SupportAssist OS Recovery
A recovery environment built into the machine, independent of Windows — useful when Windows itself won't start.