UEFI vs Legacy Boot: Which One to Choose for Faster, Safer PC Startup
UEFI (Unified Extensible Firmware Interface) is a modern firmware that replaces the decades-old Legacy BIOS, providing faster boot, secure boot keys, and mouse-driven menus.
People still say “Legacy BIOS” when they mean the old blue-text setup, because motherboard makers kept the name. In reality, your new laptop skipped Legacy years ago; it just feels familiar.
Key Differences
UEFI boots in seconds via GPT disks, supports Secure Boot and drives larger than 2 TB. Legacy uses MBR, takes longer, and offers zero cryptographic checks.
Which One Should You Choose?
Pick UEFI unless you’re reviving a 2009 PC or running a niche OS that demands Legacy. You’ll gain speed, security, and room for future upgrades.
Can I switch from Legacy to UEFI without reinstalling Windows?
Yes, using Microsoft’s MBR2GPT tool, but back up first.
Does Secure Boot block Linux?
No; most distros now ship UEFI-signed kernels.