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A technician is trying to set up a computer to dual boot from both Windows and Linux. The technician believes that a setting is preventing the computer from accessing the flash drive with the OS image prior to loading the OS. Which of the following settings should the technician check?
Correct Answer: B
The Unified Extensible Firmware Interface (UEFI) is the setting that should be checked when a computer is not booting from a flash drive containing an OS image. UEFI is a modern firmware that replaces the traditional BIOS and includes a "Secure Boot" feature that can prevent unauthorized operating systems from loading during the system's boot process. This security feature might be the reason the computer cannot access the flash drive before loading the OS. Disabling Secure Boot or adjusting the boot order within the UEFI settings can allow the system to boot from the flash drive. This is supported by the CompTIA A+ Core 1 (220-1101) Exam Objectives, particularly in sections 1.4 "Given a scenario set up and configure accessories and ports of mobile devices" and 4.0 "Virtualization and Cloud Computing", emphasizing the importance of UEFI settings in boot processes and virtualization .