Making a USB drive bootable using command prompt

Sometimes you may want to install an operating system to your computer but you may find that your CD-ROM is not working or your computer does not have a CD-ROM so the only option you have will be installing your operating system from other storage media...
It is possible to use a USB drive to install operating system in your computer though its not as easy as copying operating system files to your drive and start the installation, first you will have to make that USB drive bootable  then install your operating system. that's what i'm going to walk you through today..
You can make a USB bootable using command prompt as follows

• Open command prompt and run as administrator (in my previous post i have shown to run cmd as administrator)
• Type diskpart then press enter

• Type list disk to display all disks present at the moment

• Observe your disk then type the command expressing it then enter

                  select disk 1 (replace disk one with your disk number)

• Type clean then enter
• Type select partition primary then enter
• Type select partition 1 then enter
• Type active then enter
• Type format fs=ntfs then enter
• Type assign then enter
• Type exit then enter
  
  

• minimize command prompt
• Insert a window CD and note its letter ie.E and USB letter F in my case
• Go back to command prompt and type E:CD BOOT then enter
• Type CD BOOT then enter
• Type BOOTSECT.EXE /NT60 F: then enter
• Open  your window installation DVD and copy all the contents to your USB 
• Restart your computer press the appropriate key to enter BIOS setting and set your computer to boot from USB
• Now you can install an operating system from your device