How to make a pendrive/other removable drive bootable without any software.

If you have a bootable image file of an Operating System that you want to install in your PC and you don't want to waste a DVD by burning the image, using it once and then throwing it off you can use a removable storage device like a pen drive to install the OS. To do so, follow these steps:-

1. First of all copy the contents of the pen drive to your PC so that you don't lose them.
2. Open CMD
3. Type the following commands one by one.

Diskpart
List disk
 
     4.  Now check which of the drive you want to use (usually it is drive 1 if you haven't plugged any other device)
   
Select disk (number)
Clean
Create partition primary
Format fs=fat32

This will take some time and when it is done you have to copy the image file to the pen drive.

Now plug the pen drive to the PC and boot it as you generally use a DVD to install the OS.