Mobile hard disk installation efi boot win8.1

Now listed laptops are basically support UEFI boot motherboard, support direct efi boot, faster and safer, today tried to install the win8.1 system with efi boot. My laptop has two hard drives: mSATA 64G solid state drive (reformatted) and 1TB 2.5 inch mechanical hard drive (GTP partition, with three primary partitions), plan to format the SSD solid state drive to GTP, used to install win8.1, There is data in the 1TB hard disk and no operation is performed. The installation steps are as follows: 1. Decompress the original win8.1 image file to the root partition of the mobile hard disk in the format of FAT32 (read and write efi file can only pass FAT32 format), and put the previously downloaded Shell.efi In the root directory. 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. 3, enter fs0 (the first hard disk) or fs1 (0 or 1 is the hard disk number,), enter the mobile hard disk: Enter dir to view the file directory, if you enter the correct, you will see the files decompressed by win8.1 Clip; enter cd efi into the efi directory; enter cd boot into the efi\\boot directory; dnzg.cn enter bootx64.efi to start the installer and enter the system installation interface. 4. Enter the installation key and enter 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 number 0, so enter select disk 0, select the operation; enter the clean command to clear the disk, enter convert gpt Convert to gpt partition; Next 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 remaining one is created as a primary partition to install the system. 5. Enter the installation interface again, select the third partition of the SSD installation, and succeed step by step.