Do the following steps from a Windows System
On-ComandPrompt
C:\> diskpart
In the elevated command prompt, type the commands below one at a time and press Enter after each one.
DISKPART> list disk
Make note of the Disk # (ex: Disk 4) for the USB flash drive. (see screenshot below step 5) NOTE: Substitute # in the first command with the actual disk # from step 4 above. For example: select disk 4
DISKPART> select disk #
DISKPART> detail disk (this is to verify that you selected the correct disk before using "clean" )
DISKPART> clean
DISKPART> create partition primary
DISKPART> format fs=fat32 quick
DISKPART> active
DISKPART> assign
DISKPART> list volume
DISKPART> exit
Make note of the volume letter (ex: K) for the USB flash drive in the command prompt.
If Using a Windows 7 or Windows 8/8.1 Installation DVD
A) Insert the Windows 7 or Windows 8 installation DVD into the CD/DVD drive.
B) In the Computer window, open the DVD. (see screenshot below)
C) Select all files in it, right click or press and hold on the selected files, click/tap on Send to and the Removable Disk for your USB flash drive letter (ex: K) from step 6 above. (see screenshot below)
D) This could take a bit to copy the DVD contents to the USB.
Now Boot the USB in UEFI mode
On-ComandPrompt
C:\> diskpart
In the elevated command prompt, type the commands below one at a time and press Enter after each one.
DISKPART> list disk
Make note of the Disk # (ex: Disk 4) for the USB flash drive. (see screenshot below step 5) NOTE: Substitute # in the first command with the actual disk # from step 4 above. For example: select disk 4
DISKPART> select disk #
DISKPART> detail disk (this is to verify that you selected the correct disk before using "clean" )
DISKPART> clean
DISKPART> create partition primary
DISKPART> format fs=fat32 quick
DISKPART> active
DISKPART> assign
DISKPART> list volume
DISKPART> exit
Make note of the volume letter (ex: K) for the USB flash drive in the command prompt.
If Using a Windows 7 or Windows 8/8.1 Installation DVD
A) Insert the Windows 7 or Windows 8 installation DVD into the CD/DVD drive.
B) In the Computer window, open the DVD. (see screenshot below)
C) Select all files in it, right click or press and hold on the selected files, click/tap on Send to and the Removable Disk for your USB flash drive letter (ex: K) from step 6 above. (see screenshot below)
D) This could take a bit to copy the DVD contents to the USB.
Now Boot the USB in UEFI mode