Windwos 7 Bootable USB Stick

Install Windows 7 from a USB drive

Make sure you have removed any wanted files on the USB drive to save location as the USB drive will be formatted in this process

Insert your windows 7 DVD in to the drive and don’t start the installation process. If you don’t have the windows 7 and have windows 7 image file then use WinArchiver or PowerISO to mount the image file as virtual CD ROM. 

Before you continue make sure the drive letter of the USB stick and the drive letter of the windows 7 drive.

Start command prompt with administrator privilege.

Type DISKPART.  This loads the diskpart application

Then type LIST DISK. It wIll show  all the disks attached to your computer. Note the disk number of your USB stick.

Then type SELECT DISK 2 (replace the DISK 2 with your preferred DISK number

(See the bellow image)

 

If it is success you will get the message like “Disk 2 is now the selected Disk”
Then type CLEAN
The message will be like bellow
 

 After the drive cleaning process follow the list of commands and check the successful response from the OS with the bellow image

SELECT DISK 2 (again select the correct DISK number here)

CREATE PARTITION PRIMARY

SELECT PARTITION 1

ACTIVE

FORMAT FS=NTFS (This will take considerable time depending on your disk capacity. Wait until the percentage reached 100%)

If it is success again you will get the message like “DiskPart successfully formatted the volume”
(See the bellow image for successful results)
  


Next type ASSIGN (assign drive letter to your USB stick)
And then EXIT (Exit the DiskPart application and come to the normal prompt)
 Type D: (Where the D is the drive letter of the windows 7 CD ROM)
Then key CD BOOT
Then BOOTSECT.EXE /NT60  E: (Again the drive letter E is the drive letter assigned to your USB 
stick ) 
(See the bellow image for successful results)
 

 Now type EXIT to exit the command prompt

Now the USB stick has been converted as bootable

The final step is to copy all the files from the windows 7 DVD ROM to your USB Stick