Legacy BIOS
UEFI vs Legacy BIOS: Which Do You Need for Windows 11?
Comprehensive comparison of UEFI and Legacy BIOS for Windows 11 installation.
Published: 2/5/20258 min readUpdated: 2/1/2026
The choice between UEFI and Legacy BIOS significantly impacts Windows 11 installation and system capabilities.
What Are the Technical Differences Between UEFI and Legacy BIOS?
UEFI operates in 32/64-bit mode with graphical interface, GPT partition support, and Secure Boot. Legacy BIOS uses 16-bit real mode, MBR partitioning, text interface.
UEFI systems boot 5-15 seconds faster than Legacy BIOS due to parallel hardware initialization and native 64-bit drivers.
结论
UEFI provides clear advantages for Windows 11 including faster boot, better security, and modern features.
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