What is the difference between UEFI and Legacy Mode which we need to choose while installing the OS? - Quora
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Guide] NVMe-boot for systems with legacy BIOS and UEFI board (DUET-REFIND) - NVMe Support for old Systems - Win-Raid Forum
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Configure your computer's BIOS to boot in LEGACY BIOS mode - Page 2 - BIOS - Tutorials - InformatiWeb
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