How To Create Your USB Flash Drive To Bootable Windows 7 Driver

Create Bootable Windows 7 USB Flash Drive:

First download PowerISO (v5.9 download).
If you are using 64 Bits window then download the bellow file:
 
Download PowerISO
If you are using 32 Bits window then download the bellow file:
 
Download PowerISO
Install PowerISO. This is a Trial version.

To get full version download serial.
 
Download Serial key
Register your program with the name and serial. (You register every time don't worry use the same name & key.)

Start PowerISO.

   Insert the Windows 7 DVD Disk into dvd drive.

   Click the menu “Tools>Make CD/DVD/Blue ray Image file………

      Choose “.iso file” then click Blue Marking Button to select your file save location.

   Now insert your USB flash drive.

Choose the menu "Tools > Create Bootable USB Drive". The "Create Bootable USB Drive" dialog will popup. If you are using Windows Vista or Windows 7 operating system, you need confirm the UAC dialog to continue.
(UAC confirmation not very hard. If you are administrative user you show a dialog click OK. Then again show another dialog Click 'Yes'.)

  Now click on Blue Marking button to open the iso file of Windows 7 where you saved.

Select the correct USB drive from the "Destination USB Drive" list if multiple USB drives are connected to the computer.

Choose the proper writing method. "USB-HDD" is recommended.

  Click "Start" button to start creating windows 7 bootable USB drive.

  Now enjoy your Bootable Windows 7 USB Flash Drive.

Configuring the BIOS:

1.    Reboot the system.

2. While booting (before Windows starts loading), get into the BIOS configuration screen by hitting something like F1, F2, Delete or Escape. Hotkey instructions are generally provided on the screen.

3.    Go to the section that contains your boot devices.

4.   With your USB drive plugged in, the USB drive should be listed. If it isn’t, your system might not support booting from USB. Assuming that it is supported (as is the case with virtually all modern hardware), promote your USB drive to the primary boot device.

5.    Exit from the BIOS configuration, saving all changes.