EFI system partition and partition removal method

Small knitting see a lot of friends ask what is the EFI system partition? How do I remove the EFI system partition? To tell you the truth, Green tea small set to start really do not know, after consulting the relevant information finally have some understanding, here with everyone to share, if you and small part of the same do not know EFI system partition, then please continue to look down ~

Introduction to----EFI System partition

EFI is conceptually very similar to a lower-order operating system and has the ability to manipulate all hardware resources. Many people feel that its continued development will likely replace the modern operating system. In fact, the creators of EFI in the first edition of the code when the ability to limit the EFI to the power of the operating system is not enough to threaten the dominant position. First, it is just the interface specification between the hardware and the pre-boot software; second, the EFI environment does not provide interrupt access mechanism, that is, each EFI driver must use polling to check the hardware state, and need to operate in an interpreted manner, than the operating system under the driving efficiency is lower; The EFI system does not provide the complex memory protection function, it only has a simple memory management mechanism, specifically refers to the operation of the x86 processor in the section protection mode, to the maximum addressable capacity of the memory into a flat segment, all programs have access to any part of the location, does not provide real protection services.

When all components of the EFI are loaded, the system can open a command interpretation environment similar to the operating system shell, where users can transfer to execute any EFI application, which can be hardware detection and debugging software, boot management, setup software, operating system boot software, etc. Theoretically, there is no limit to the capabilities of the EFI application, and anyone can write this software, and the effect is more gorgeous and more powerful than the previous MS-DOS software. Once the boot software gives control to the operating system, all service code used for booting will stop working, and some runtime service programs can continue to work so that the device can continue to be used when the operating system cannot find the driver for a particular device at a time.

----EFI System partition Removal method (remove EFI system partition with diskpart command)

Note:

Before you do so, back up all of the partition data on the disk to a separate hard drive, and the following commands cause all the consequences at your own risk.

Steps:

1, open windows "Run";

2, Input Diskpart command return;

3, re-enter the list disk command return to see where the EFI partition belongs to which disk;

4, and then enter select disk N command Select the selected disks (n is the disk you want to remove the EFI partition, if the disk containing the EFI partition is 3, then the input command is "select Disk 3");

Finally, enter execute clean to completely clear the EFI partition.