BIOS, MBR, UEFI, and GPT relationships

Many users in the new computer, or to the existing computer to reinstall the system has been there is no way to boot USB stick installation situation. The reason for this is that the complex relationships between BIOS, MBR, UEFI, and GPT are still not clear. So, today's small series to share with you about their love and hatred between the feelings of revenge.

BIOS and Uefi

The BIOS should be lifted. Nobody knows. And UEFI is the BIOS upgrade version, its biggest feature can be the bios of the monotonous blue-white or black-white white or white to replace with an illustrated style, you can click on the mouse to set, anyway, looks like a tall on.

MBR and GPT

MBR is the traditional partition table type, the biggest disadvantage is that the capacity of more than 2T of hard disk is not supported. GPT has the disadvantage of MBR, which supports up to 18EB hard disks and is a UEFI-based disk partitioning scheme.

Of these, all Windows systems currently support MBR, but GPT has only 64-bit systems to support.

In addition, the BIOS only supports MBR boot systems, and GPT only supports UEFI boot systems. As a result, most motherboards of the computer now use the BIOS integrated UEFI, or UEFI integrated BIOS to achieve the same compatibility with MBR and GPT boot system.

Because the GPT boot system differs from the MBR, we are confronted with the need to manually turn on UEFI or set it to legacy mode when installing the system.

As for the BIOS+MBR and uefi+gpt two combinations can be directly lossless conversion, interested in children's shoes can refer to the online tutorial, using Diskgenius This software can be achieved.

Below, the small part of a very good computer (small series of personal experience Oh, very representative), a simple introduction to find a U disk (boot disk) solution.

To m7100z, including Lenovo and think-in-one computer, power on repeatedly press the F1 key to enter the BIOS. Since the bios of m7100z is already in Chinese, this article explains the setting options that are translated by the doctor. First, enter the BIOS Startup tab and set the Compatibility module to "on" first.

Then modify "Boot Mode" to "Legacy", save the BIOS to exit the restart, and then press F12 to enter the boot device menu, you can theoretically see the USB flash drive option with the system installed.

But the new problem is that at this point the boot device menu turned out to be only DVD and SSD, and did not recognize the USB flash drive!

After a consultation, it is necessary to enter the "Main boot order" interface above the BIOS startup tab. The startup item where the USB flash drive is located is categorized by the BIOS in the "not Included boot order" (if the English version of the BIOS corresponds to the excluded form boot orders) list.

At this point, we need to move the cursor to the same line as the USB flash drive, press the F key to lock, and then press the X key to transfer it to a list that can be correctly recognized by the BIOS.

Save the BIOS reboot system, press F12 again to enter the boot device menu, the long-lost system finally appeared!

Select the USB drive to boot, then you can enter the system installation interface. If you understand the need for this computer tutorial, it is estimated that your computer has similar problems can be solved.

BIOS, MBR, UEFI, and GPT relationships