How fast does win7 uefi start?

Generally speaking, it is the startup mode with the startup time of 10s, and the fastest is 5s.

Why does uefi boot up so fast?

Because the previous computers were basically started with the traditional bios, now there is a new mode, and there is a special boot partition (esp) on the hard disk, so the boot is faster.

What is UEFI?

Extensible firmware interface (EFI) is a standard proposed by Intel for the architecture, interface and service of new PC firmware. The main purpose of the graphical hardware setup interface in UEFI is to provide a set of boot services that are consistent and correctly specified on all platforms before OS loading (before booting), and it is regarded as the successor of PC BIOS with a history of nearly 20 years.

The main difference between Bios boot mode and UEFI boot mode is that the format of hard disk partition table is different. There are two hard disk partition table formats: MBR and GPT(GUID). MBR is relatively common, generally in the format of win7 system, and the newly installed machines in win8 are generally in GPT format. The difference between these two formats is that GPT format has two more partitions (ESP, MSR) than MBR.

Precautions:

1. The motherboard should support UEFI.

2. It must be a 64-bit system. It's time to give up the 32-bit system.