Dell BIOS and UEFI Update Download and Installation Guide

Before you begin

Updating your BIOS or UEFI is easier than you might think. For the most streamlined experience with step-by-step instructions, helpful videos, and comprehensive troubleshooting support, visit our How to Update BIOS: Install and Upgrade BIOS on Windows library page. This dedicated resource walks you through every update method and answers common questions in one convenient location.

What BIOS/UEFI Is

BIOS (Basic Input/Output System) and UEFI (Unified Extensible Firmware Interface) are the firmware that connects your computer's hardware to its operating system — the foundation that starts the computer and lets it communicate with its components.

Modern Dell computers use UEFI, which provides:

• Faster startup times
• Enhanced security features
• Better compatibility with newer hardware
• Improved system stability

Why Update BIOS/UEFI

Dell regularly releases BIOS/UEFI updates that include:

• Security enhancements — protection against newly discovered vulnerabilities
• Performance improvements — speed and efficiency optimizations
• Hardware compatibility — support for new components and peripherals
• Bug fixes — resolutions for known stability issues
• Feature additions — new capabilities and settings

Dell recommends updating BIOS as part of regular system maintenance.

Before You Update: Required Precautions

Complete all of the steps below before starting any BIOS/UEFI update. Skipping the security-related steps in the Disable BIOS/Drive Security Features (Required) section is one of the most common causes of a BIOS update failing, hanging, or the system's drive becoming inaccessible after the update.

General Precautions

• Back up your data. Update interruptions are rare but can affect system stability.
• Charge the laptop to at least 10%, and connect AC power for the duration of the update.
• Stay on AC power throughout — do not run a BIOS update on battery alone.
• Close all open programs to prevent interference during the update.
• Disconnect external devices — USB drives, printers, docking stations, and other peripherals.

Disable BIOS/Drive Security Features (Required)

Before flashing a new BIOS, disable the following in BIOS/UEFI Setup if they are enabled. These features interact directly with the firmware being replaced; leaving them enabled can cause the update to fail, or can leave the drive unreadable/locked when the system restarts on the new BIOS.

Order of operations:

Not following this order can lock you out of the settings you still need to change.

1. Suspend/disable drive encryption.
2. Clear the Hard Drive/SSD password.
3. Clear the System password.
4. Clear the Admin password.

Re-enable all of these (in reverse order) only after confirming the new BIOS version is installed and the system boots normally

BitLocker Users

If BitLocker is enabled on the system:

1. Search for "BitLocker" in Windows.
2. Select Manage BitLocker.
3. Choose Suspend protection.
4. Proceed with the BIOS update.
5. Re-enable BitLocker after the update completes.

If BitLocker is not suspended, Windows will require the BitLocker recovery key at next restart. Recovery keys are found in the Microsoft Account recovery key page under Devices.

How to Check Your Current BIOS Version

Confirm your current version before updating, so you know whether an update is actually needed.

Method 1 — BIOS/UEFI Setup

1. Restart the computer.
2. Press F2 repeatedly at the Dell logo.
3. Check the version under System Information or Overview.

Method 2 — Windows System Information

1. Press and hold the Windows key, and then press the R key.
2. In the Run box, type msinfo32 and press Enter.
3. Locate BIOS Version/Date.

Method 3 — Command Prompt

1. Press and hold the Windows key, and then press the R key.
2. In the Run box, type cmd and press Enter.
3. In the command Prompt, type wmic bios get smbiosbiosversion and press Enter.

How to Update: Available Methods

Full step-by-step instructions for every method are maintained in the BIOS/UEFI Update Guide.

Accessing BIOS/UEFI Setup

1. Turn on or restart the computer.
2. Press F2 repeatedly as soon as the Dell logo appears.
3. The BIOS setup screen opens.

Alternative: Press F12 at the Dell logo, then select BIOS Setup or System Setup.

If F2 doesn't respond, try Fn + F2, or tap F2 repeatedly rather than holding it.

BIOS layout varies by model. Only change settings you understand — this is also where you'll complete the Disable BIOS/Drive Security Features (Required) section.

Troubleshooting a Failed or Stuck Update

• Confirm the laptop is on AC power.
• Charge the battery to at least 50%.
• Disconnect docking stations, external drives, and peripherals.
• Confirm (BIOS/System/Drive password, drive encryption) were disabled/suspended before the update started — if not, this is the first thing to check.
• Try a different update method — the Standalone Update Utility is a common fallback.
• Verify the downloaded BIOS file matches your exact model and system.

BIOS Recovery (System Won't Start After Update)

Modern Dell systems include a BIOS Recovery feature that restores BIOS using recovery files on the internal drive or a USB drive.

Full recovery steps: Recover BIOS on Dell Computer or Tablet After Boot or POST Failure.

If a Hard Drive/SSD password or drive encryption was left enabled during the failed update, recovery may also require the drive password or encryption recovery key — see Disable BIOS/Drive Security Features (Required) Section.

BIOS Security Features (Reference)

Reminder: Disable/suspend all three of the above — plus drive/BitLocker encryption — before updating BIOS (see Section Disable BIOS/Drive Security Features (Required)), and re-enable them afterward.

Frequently Asked Questions

Q: Do I need to disable BIOS or drive passwords before every BIOS update? A: Yes, if any of them are set. Clear the Admin password, System password, and Hard Drive/SSD password, and suspend drive/BitLocker encryption, before starting the update. Re-enable them once the new BIOS is confirmed working.

Q: What happens if I update BIOS without disabling the Hard Drive/SSD password or encryption? A: The update may fail partway, or the drive may appear locked, missing, or inaccessible after restart. In BitLocker's case, Windows will prompt for the recovery key. In SED cases without the correct credentials, this can risk data access.

Q: How often should I update my BIOS? A: During regular maintenance, or when Dell releases a critical security or stability update.

Q: Will updating BIOS delete my data? A: No, the update itself doesn't touch personal files. Back up your data anyway as general good practice.

Q: Can I downgrade to an older BIOS version? A: Sometimes — Dell may block downgrades once a version includes critical security fixes. Check the specific release notes.

Q: Do I need administrator rights in Windows to update BIOS? A: Yes.

Q: What if the update fails? A: Confirm steps in the Disable BIOS/Drive Security Features (Required) and BitLocker Users section were performed,, then try a different update method. See the How to Update: Available Methods section.

Watch this video to learn how to download and install the latest BIOS or UEFI on a Dell computer.