How to make USB drive bootable for installation of windows 7

Follow the below steps to make a bootable USB drive for windows 7 installation:

1. Open command prompt as administrator (type cmd at RUN and then CTRL+SHIFT+ENTER)
2. Type & Enter DISKPART
   
     Enter following commands at DISKPART prompt

1. LIST DISK
2. Find out your USB Drive (let it be DISK 1)
3. SELECT DISK 1
4. CLEAN
5. CREATE PARTITION PRIMARY
6. SELECT PARTITION 1
7. ACTIVE
8. FORMAT FS=NTFS
9. ASSIGN
10. EXIT

3. Unzip all the content of .iso file to D:/Win7/
4. CD to D:/Win7/BOOT/
5. Type another command given below to update the USB drive with BOOTMGR compatible code.
    BOOTSECT.EXE /NT60 H: (Here H: is USB Drive)
6. Copy all content of Win7 Directory to USB Drive
7. USB is ready to boot