What is UEFI ?

UEFI stands for Unified Extensible Firmware Interface and it is a new way of booting rather than the legacy BIOS. UEFI has many advantages over its 25-30 years old competitor Legacy BIOS. Some of them are it is faster, safer and easier to use with 3rd Party OEM ADD-ONs. UEFI is also more user-friendly and even a child can use it to change the boot order. In my own opinion it is very much user-friendly as when i first opened the Boot Menu in Legacy BIOS it was no less than a horror movie, but in UEFI it was a piece of cake.
 
Legacy BIOS (top) vs UEFI BIOS(Bottom)
source : unhappyghost.com
Believe me when i say User-Friendly and Faster. In UEFI boot first, the UEFI starts, then it starts the EFI boot loader which allows only verified OS to run, than it proceeds to the Kernel and then the OS starts. UEFI also uses a better way to separate the disks (partitioning scheme) which is new, the new scheme is called GPT and the Legacy BIOS uses old partitioning scheme, that is the MBR partitioning scheme.

So,What's good for normal people in it ? First of all its more secure as i have already said , second users will have faster startup times, faster shut-down times and faster sleep times and faster resuming times. So, it will help you to get a blazing lightning speed at work and be more productive. 

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