How to Enter the One-Time Boot Menu on a Dell Latitude 5420

Accessing the Dell Latitude 5420 Boot Menu

• 💡 The one-time boot menu allows you to select a temporary boot device without altering BIOS settings.
• 🎯 This menu is useful for booting from USB drives, external CD drives, network boot options, or different drive partitions.

Preparing Your Laptop and Boot Device

• 🔌 Ensure your Dell Latitude 5420 is completely shut down before proceeding.
• ⚠️ If performing a force shutdown, press and hold the power button until all lights are off and the display is blank.
• 💾 Plug in your desired boot device (e.g., USB drive, external CD drive) before powering on the laptop.

Entering and Using the Boot Menu

• ⚡ Immediately after pressing the power button, repeatedly press the F12 key until the boot menu appears.
• 🔍 The screen will indicate "Preparing one-time boot menu" in the top right corner.
• 🖱️ Use the arrow keys to navigate the list of boot devices displayed on the left side of the screen.
• ✅ Select the appropriate boot device, such as the UEFI USB option for a USB drive.

Confirmation and Next Steps

• 🚀 The laptop will then proceed to boot from the selected device.
• 💻 The video confirms successful booting into the Windows 11 setup from a USB drive.