UEFI and Legacy BIOS are 2 different system of Motherboard’s firmware. UEFI (Unified Extensible Firmware Interface) is the replacement to legacy BIOS (Basic Input/Output System) system. It has several enhancements than the legacy BIOS.
UEFI has more security features than legacy mode that is why highly recommended to use this mode than legacy mode.
Less complex code
UEFI developed use C language while legacy BIOS mode use assembler. C language is simpler than assembler, thus we can add new code easily and adapt the program to match the user needs.
Boot Faster Than Legacy Mode
As UEFI able to customize causing it to boot faster than Legacy BIOS. This is because UEFI no need to self test the system as the Legacy mode does.
in Legacy mode, you might remember that we need to update BIOS firmware to make our new hardware works with the system. With UEFI drivers can be uploaded without upgrading the firmware as it has separate system.
Recognize Bigger Harddrive Partition
UEFI able to support Harddrive more than 2 TB capacity. To be able boot using UEFI mode, you need to replace MBR to GPT system.
UEFI can have more than 4 primary partitions.
UEFI able to check integrity of Operating system when booting to make sure the operating system not changed by any malicious program.
Remote Support Networking
Remote troubleshooting is possible in the level of UEFI before accessing the Operating system. This is not possible in Legacy mode.
With above features will you start uisng UEFI for better and faster computer system? All new computer system are support UEFI and you should use it.