How to turn a USB PenDrive into a Bootable Device.
The process of converting a USB pen-drive into a Bootable one is very simple than you think. The only thing you need to accomplish this is a pen-drive and a DVD having an Operating System inserted in the DVD Rom. Be sure to format the pen-drive before using it.
Open the command prompt in windows. Type in the following command in the command prompt with the pen-drive inserted in the system and the DVD with the OS software inserted in the system.
The command to make the pen drive Bootable is,
xcopy DVDdriveName:*.* /s/e/i penDriveLetter:
The main thing to note here is,
Once you have entered the command the system starts to copy all the contents into the Pen-drive.
Do not remove the Pen Drive or Eject the DVD while the process is going on.
Once the task has been completed, the command prompt will display a completed message. Do not open the Pen-drive to view the contents. Just eject the Pen Drive from the system. To install the operating system from the device do the following steps.
Once the installation completes, change the Boot priority back to your Hard Disk and Format the Pen Drive to use it back as a normal Pen Drive.