How to install Windows Vista/7 using bootable USB storage device

Requires:
- Windows Vista/7 DVD 0r installation source (setup backup files)
- A 4GB USB 2.0 Storage device (Its recommeded to use USB 2.0 device for optimal performance)
Plug your USB storage device.
Run CMD and execute the following commands one by one.
Diskpart

Run Disk parition utility
List disk

To get disk index that is used to pefrom disk paritioning.
Select disk 1

Selects disk to pefrom disk paritioning.
Clean

Flush your existing all USB drive's partitions.
Create parition primary

Creates a parition as primary parition.
Format recommeded

Format your USB drive w/ recommeded parameters. (No need to worry about file system format)
Active

Set the parition as active to hold bootmgr.
Exit

To quit Diskpart utlity
Now copy all Windows Vista/7 files to USB storage device... thats all.
Boot your PC w/ it, you can install Windows Vista/7 via bootable USB storage device.

Note: If you face any trouble to boot w/ it or unable to boot, try this

FIX.

I:\Boot\Bootsect.exe /NT60 I: Where I: is the drive letter of USB storage device

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