Boot Window 8, Windows 7 or Windows Vista from USB Flash Memory

installing Windows 8  or Windows 7 or Windows Vista  from USB Flash Memory

What is booting Window from USB Flash Memory? I think you know what is USB Flash. We can boot windows from USB Flash Memory without DVD Rom.
*Note: Size of USB Flash must equal or greater than size of windows that you want to install.
please see the instruction as below:

Please follow 9 steps:
1. plug in you USB drive -> Move all your files from USB Drive to other drive temporary in order to keep from losing data.

2. Command Prompt as Administrator fellow as below to run Command Prompt as administrator
-> type cmd in Start Menu search box or click on Start menu -> All Programs -> Accessories -> right click on Command Prompt -> Run as administrator

3. type as DISKPART -> press Enter

-> type LIST DISK as above picture and record number of Disk (Example: Disk 1) for your USB Flash Drive 1(My Flash Drive Disk is  Disk 1).
 

4. type select disk 1(for my Disk Drive is "Disk 1".If your USB Drive Disk number is "Disk 2", type select Disk 2. please, see previous step if you forget your Disk Number).  

-> type Clean ( delete everything such as all data and files from USB Disk )

-> type Create Partition Primary ( create a new Primary Partition with Default Parameter )

-> Select Partition 1 ( refer to new Partition created)

-> type Active (assign  Active for Partition which  is chosen to tell Disk Firmware that System        Partition is correct)

-> type Format FS=NTFS ( FormatPartition using NTFS File System. this point take 3 or 4 minutes or longer based on size of USB Flash  to complete.

-> type Assign ( provide one Volume in Windows for USB Drive )

-> type Exit ( Finish Disk Partition process )

5. put your Windows 8, 7, Vista in Optical Drive and record your DVD Drive Letter . For this ,  DVD Drive Letter is “F”  and USB Drive Letter is “H” (you can extract windows files from windows Image file to Virtual CD Drive to act as real Optical Drive if you don't have DVD Rom).

6. type  F:CD BOOT -> press Enter -> type cd boot -> press Enter ( "F" is DVD Drive Letter )

7. type bootsect.exe /NT60 H: -> press Enter( Update USB Drive to correspond to BOOTMGR
    Code of Windows but Code of Windows 8 & Windows 7 are the same)

8. Copy File frome DVD Windows8 or Windows7 or Vista to USB Flash Drive or Extract File from  
     window image file (*.iso) using WinRar to USB Flash Drive. 

9. setup boot priority for USB Flash( Removeable Device) in BIOS .
I don't detail about boot priority or enable USB boot option because of differences of BIOS.
Note: If your Flash is not Bootale after correct following above instruction , this mean that you can not define BIOS to Boot from USB Flash or your computer doesn't Support with Booting from USB Flash.