Making Bootable Windows USB through DOS and DISKPART

BootableUSB.md

Insert USB Flash drive

4GB or higher for Windows 7 and above

Open cmd prompt as admin

Right click start menu, click command prompt (admin)

Run diskpart

diskpart

Run list disk

list disk

Exmaple Output

  Disk ###  Status         Size     Free     Dyn  Gpt
  --------  -------------  -------  -------  ---  ---
  Disk 0    Online          238 GB      0 B        *
  Disk 1    Online          476 GB      0 B        *
  

Select flash drive to be made bootable

From the output of list disk, select the number of the USB drive that will be bootable

select disk 2

Disk 2 is now the selected disk.

Remove all contents of flash drive

THIS WILL DELETE ALL DATA ON DRIVE

clean

Create partition

create partition primary

Selecte created partition

select partition 1

Format created partition

format fs=ntfs quick

Set created partition as active

active

Exit diskpart

This will exit diskpart, but leave cmd open

exit

Navigate to OS to be copied

If the OS is in ISO format, it needs to be mounted and extracted

Example if OS contents is on root of I drive:

I:

Navigate to boot and install bootsector on formated USB drive

This example is if USB is the L: drive

cd boot
bootsect.exe /nt60 L:

Copy entire contents of the OS onto the flash drive

This example is done with the OS being on the root of I: and the flash drive as the drive L:

xcopy I:\*.* L:\ /E /H /F