To create a bootable flash drive, open the command line as administrator and enter the commands:
diskpart
list disk (look at the flash drive number)
select disk flash_number
clean
create partition primary
select partition 1
active
format quick fs=fat32 label="Win8UEFI"
assign
exit
We mount a Windows 8 64-bit image on a virtual drive.
Next, copy the image to the USB flash drive by running the following commands on the command line:
xcopy I:\*.* F:\ /e /f /h (where I is a virtual drive, F is a flash drive).
xcopy F:\efi\microsoft\*.* /e /f /h F:\efi\
xcopy C:\Windows\boot\efi\bootmgfw.efi F:\efi\boot\bootx64.efi
bootsect /nt60 F:
(the file will be located in F:\boot\bootsect)
When you turn on the computer, press the key to enter the UEFI BIOS (Delete or one of F1-F12).
We include support for UEFI.
In the priorities of the devices to boot, select the USB device. This can also be done by pressing the key to enter the Boot Menu when you turn on the computer.
We save the configuration and exit.
After booting from the media, select “Install”, accept the license agreement, then – “Full installation (additional parameters)”. Press Shift+F10 and enter the commands at the command prompt:
diskpart
sel dis 0
clean
convert gpt
exit
exit
Update and Next.
Done.