How to make Pen Drive into Bootable format in windows 7

Step 1: Go to Start and type "cmd" . Then Right click on cmd and click "Run as Administrator"

Step 2: Type diskpart

step 3: Type list disk and enter . you could see similar thing like this and look at the size of disk .
            disk 1 is our pendrive.

step 4: Type " select disk 1 "   and enter

step 5: Type "clean" and enter

step 6:   Then type "create partition primary" and enter

step 7: Then type "select partition 1" and enter

step 8: Now type " format=fs ntfs quick" and enter

check this image . when you do it must look like this

step 9: Then type "active" and enter

step 10: Then type "exit" and enter

After all these steps copy your ISO file to pendrive . Now its bootable

Thank you,