How to use U disk /mobile hard disk to install EFI boot mode win8.1 system

EFI boot has been more and more praised by everyone, especially laptops, most of the recent mainstream motherboards generally support UEFI boot, The so-called UEFI boot is an EFI boot disk made with a USB flash drive. This boot method is faster and more secure. For UEFI boot, I have already described it in the previous article. If necessary, please read the related reading below. It is also the US network mainly to give you an example of how to install the win8.1 system started by efi.

Before starting, declare my environment:

ASUS notebook, two disks, one is mSATA 64G solid state drive (reformatted), one is 1TB 2.5 inch ordinary machinery Hard disk, first format the SSD solid state drive as GTP, used to install win8.1 system, the data in the mechanical hard disk is intact.

The specific installation steps are as follows:

Installation Step 1. Unzip the original win8.1 image file to the mobile hard disk. The main partition of FAT32 format (read and write efi file can only pass FAT32 format) In the root directory, the previously downloaded Shell.efi is also placed in the root directory.

Installation Step 2, restart the computer, enter the BIOS, select the Launch efi file from.... option, the computer automatically reads and writes the mobile hard disk into the shell command line.

Installation Step 3, input fs0 (the first hard disk) or fs1 (0 or 1 is the hard disk number), enter the mobile hard disk: input dir to view the file directory, if you enter the correct, you will see win8. 1 Extract the few folders;

Enter cd efi into the efi directory; enter cd boot to enter the efiboot directory; enter bootx64.efi to start the installer and enter the system installation interface.

Installation Step 4: After entering the installation key and entering the installation disk interface, press shift+F10 to enter the command line mode to partition and format the hard disk.

Enter the DISKPART command, and then enter the list disk command to list the hard disk on the current computer; select the corresponding disk according to the size, where the SSD corresponds to the 0 number, so enter select disk 0, select the operation;

Enter the clean command to clear the disk, enter convert gpt to gpt partition; then create an efi partition 200Mb and a msr partition 128Mb:

create partition efi size=200 //boot system

format quick fs=fat32 //formatted as fat32

create partition msr size=128 //Microsoft reserved partition

create partition primary //The rest is created as a primary partition, used to Installation System

Installation Step 5, enter the installation interface again, select the third partition of the SSD installation, and succeed step by step.