Making Bootable USB for OS installation

In windows we are having two procedures one using command line another one is using application any i will explain both of them.

Using command line

• Insert your USB (4GB+ preferable) stick to the system and backup all the data from the USB as we are going to format the USB to make it as bootable.
• Open elevated Command Prompt. To do this, type in CMD in Start menu search field and hit Ctrl + Shift + Enter. Alternatively, navigate to Start > All programs >Accessories > right click on Command Prompt and select run as administrator.
• When the Command Prompt opens, enter the following command DISKPART and hit enter.
  LIST DISK and hit enter.
• Once you enter the LIST DISK command, it will show the disk number of your USB drive.
• In this step you need to enter all the below commands one by one and hit enter. As these commands are self explanatory, you can easily guess what these commands do.
  SELECT DISK 1 (Replace DISK 1 with your disk number)
  CLEAN CREATE PARTITION PRIMARY SELECT PARTITION 1ACTIVE
  FORMAT FS=NTFS(Format process may take few seconds)
  ASSIGN
  EXIT

Don't close the command prompt we are having another command to execute.

• Type in command to start copying all the content from the DVD drive to your newly formatted high speed flash drive.

                           xcopy d:\*.* /s/e/f e:\

Using Application(GUI)

• Insert your USB flash/pen drive to your system and backup all the data from the USB as your USB drive will be formatted during the process.
• Now download WinToFlash tool (free) from here.
• Run the tool, and browse to your Windows 7, Vista, or XP DVD files (make sure that your USB drive letter is correct).
• Click Create button to begin the bootable USB process. Wait for few minutes to see the bootable USB.
• That’s all!

Up to now we have learned to create USB bootable windows operating system now we will learn to create linux bootable from windows

• Download the LiveUSB Creator program for Windows from  http://fedorahosted.org/liveusb-creator.
• LiveUSB Creator can create live USB media from an image file that you downloaded previously.
• click the Browse button under the Use existing LiveCD label, browse to the location where you previously downloaded a Fedora Live ISO file, and select that file.
• select a Fedora Live ISO file from the drop-down menu that LiveUSB Creator presents under the Download Fedora label. Note that image files are large and that it is probably impractical to use LiveUSB Creator to download an image file if you do not have a broadband connection to the Internet.
• Click Create Live USB

Above procedure works for fedora linux we are having another one which is capable of booting any linux from pendirve.

Using UNetbootin

         UNetbootin allows you to create bootable Live USB drives for a variety of Linux distributions from Windows or Linux, without requiring you to burn a CD. You can either let it download one of the many distributions supported out-of-the-box for you, or supply your own Linux .iso file if you've already downloaded one or your preferred distribution isn't on the list.

        By using Windows, run the file, select a distribution, floppy/hard disk image, or kernel/initrd to load, select a target drive (USB Drive or Hard Disk), then reboot once done.