UEFI provides support for larger disks with GUID partition table (GPT), enables faster boot times through optimized initialization, supports secure booting, and offers a graphical user interface (GUI) for system configuration.The EFI (Extensible Firmware Interface) system partition or ESP is a partition on a data storage device (usually a hard disk drive or solid-state drive) that is used by computers that have the Unified Extensible Firmware Interface (UEFI).UEFI (Unified Extensible Firmware Interface) is a newer standard that replaces the legacy BIOS. UEFI offers more features and benefits, such as faster boot times, better security, larger disk support, and graphical user interface. Legacy BIOS is the old mode that uses a 16-bit code and a limited number of options.

What is the difference between UEFI and BIOS : Boot Speed: UEFI generally boots faster than BIOS, allowing for quicker system startup and reduced waiting times. Customizability: UEFI allows for more customization options, enabling users to personalize settings and optimize system performance to a greater extent than BIOS.

Why use UEFI instead of Legacy

In general, install Windows using the newer UEFI mode, as it includes more security features than the legacy BIOS mode. If you're booting from a network that only supports BIOS, you'll need to boot to legacy BIOS mode. After Windows is installed, the device boots automatically using the same mode it was installed with.

Why is UEFI faster : UEFI natively supports NVMe storage devices, providing efficient access to high-performance, non-volatile memory-based storage. Example: UEFI allows seamless integration of NVMe drives as boot devices, enabling faster storage access and improved overall system performance.

If you are not a fan of the UEFI GUI and want a simple interface, you can switch to BIOS if your system supports it. In contrast, use UEFI for faster boot time and when you have hard drives larger than 2 TB.

UEFI firmware provides several technical advantages over a BIOS: Ability to boot a disk containing large partitions (over 2 TB) with a GUID Partition Table (GPT) Flexible pre-OS environment, including network capability, GUI, multi language.

Is UEFI better

UEFI is a newer firmware developed for more recent machines. Therefore, it offers greater scalability, better performance, programmability, and security.Anyway, a BIOS boot, or UEFI hybrid with CSM (which provides a BIOS boot mode) is a 9 second boot. Pure UEFI boot — same machine and same drive — is a 30 second boot.Enabling UEFI mode on your laptop improves system performance by allowing for faster boot times, efficient memory handling, secure boot processes, support for larger storage devices, and better compatibility with modern hardware.

Whilst UEFI might sound like the clear winner, there is a time when Legacy BIOS is needed. If you are using an old operating system or old hardware, then UEFI isn't compatible with your PC. Therefore, you'll need to use Legacy BIOS.

What are the disadvantages of UEFI BIOS : UEFI has limited compatibility because it only supports 64-bit systems. While these are increasingly becoming standard, 32-bit systems are still widely used, especially in the Windows ecosystem.

Is GPT UEFI or Legacy : When installing Windows*, the partition style used will determine if UEFI mode or legacy BIOS mode is supported. UEFI mode is compatible with the GUID Partition Table (GPT) partition style, while the legacy BIOS mode is compatible with the Master Boot Record (MBR) partition style.

Is UEFI good for gaming

Gamers who use solid-state drives (SSDs) benefit from UEFI's support for larger storage devices and its ability to boot from drives larger than 2 TB. This is particularly important for those who have extensive game collections and prefer to keep them on fast storage to reduce load times.

Some UEFI modules and drivers can be loaded in parallel, rather than legacy sequential, to reduce boot time. Updated and larger Option ROMs can be used to initialize expansion devices such as graphics, audio, networking, and storage controllers.Legacy MBR boot is not able to recognize GUID Partition Table (GPT) disks. It requires an active partition and supporting BIOS to facilitate access to disk. OLD and limited on HDD size and number of partitions.

Is UEFI better than Legacy MBR GPT : MBR is compatible with legacy and older operating systems that do not support GPT. On the other hand, if you have a newer computer with UEFI firmware, GPT is recommended for better compatibility and support for modern features.