Create bootable USB Flash drive using DISKPART

Create bootable USB using DISKPART for OS installation

Prepare: PC run windows 7, USB with capacity >= 4GB, media windows (DVD, ISO file)

1)   Insert the media windows DVD in a drive (or mount the ISO) and make note of the drive letter.  In my case it is drive H:

2) Put the USB in the computer and make note of the drive letter. In my case it is I: and 7.25GB

3) Go to Start > type cmd > right-click cmd.exe > select Run as Administrator

4) Run DISKPART to prepare the disk for the OS install {question mark “?” below should be replaced with the disk number of the USB drive you are using}

diskpart

list disk

select disk ?

clean

create partition primary

select partition 1

format fs=ntfs quick label=”Win8.1-Pro-x64”

active

exit

You should still be in the command prompt window

5) Now we need to copy the boot sector.  You should still be in the command prompt window

C:\Windows\system32>H:

H:\>cd boot

H:\boot>bootsect  /nt60 I:

H:\boot>exit

6) Copy all source from DVD to USB