BOOTABLE USB: Install OS through your USB:

FOR WINDOWS 7/VISTA

1) Download Win7/Vista ISO image

2) Use MagicISO or any software that can extract an ISO file

*Extract ISO file

3) Plug your USB(atleast 2GB) in your computer 

5) Select "Start->Run..." and type "cmd.exe"

6) At the DOS prompt type " diskpart"

7) Type "list disk"

8) "select disk 3" (if your usb is in disk 3)

9) "clean"

10) "create partition primary"

11) "select partion 1"

12) "active"

13) "format fs=fat32" (wait until formatting completes)

14) "assign"

15) "exit"

16) Done. Now copy extracted files to your USB



FOR WINDOWS XP

1) Download WinToFlash

*Extract downloaded zip file, then double click WinToFlash.exe

2) Click Accept Button

3) Click the button to enter Wizard mode

4) Click Next

5) Click Windows files path then select CD/DVD or browse FOLDER location of the OS that you want to use 

6) Click select button sa USB drive then select USB that you want to use for booting

7) Click Next

8) Select I Accepted the terms of the license agreement tapos click Continue.

*You'll encounter a WARNING)Click OK

9) It will now transfer system files to your usb. This will take mins

10) When files are transfered. click NEXT then EXIT



HOW TO BOOT FROM USB

1) Plug your bootable USB into your computer

2) Turn on your computer then hit F2 or F12 rapidly!(it depends on your motherboard's brand)

3) Select your USB