How convert the Pen drive as Bootable

Using a USB Drive as an Installation Source

USB storage devices have several advantages over DVD-ROMs. With a USB storage device, you can modify the operating system image directly using tools such as Dism.exe. You can add extra drivers to the image stored on a USB storage device, something that is not possible to do to the installation image stored on a DVD-ROM. Another advantage of USB flash devices is that they have faster read speeds than DVD-ROM drives, meaning that the time to transfer the operating system fi les to the target computer’s hard disk is reduced.

            A USB storage device needs to be 4 GB or larger if you want to use it as a Windows 7 installation source. This is because the x64 installation fi les are approximately 3.2 GB in size and the x86 installation fi les are approximately 2.5 GB in size. You use one architecture’s installation fi les only when preparing a deployment from a USB storage device. The USB storage device should use the FAT32 fi le system.

To prepare a USB storage device as an installation source for Windows 7, perform the following steps:

1. Connect the USB storage device to a computer running Windows 7 or Windows Vista. Ensure that the storage device has no data stored on it that you want to keep (or that you have moved such data to another storage device) because this procedure removes all existing data.

2. Open an elevated command prompt and type diskpart.
NOTE: To run elevated command prompt please see view the screenshot
3. At the DISKPART> prompt, type list disk. Identify which disk connected to the computer represents the USB storage device.

4. At the DISKPART> prompt, type select disk X where X is the number of the disk that you have identified as the USB storage device.

5. At the DISKPART> prompt, type clean. When the disk is clean, type create partition primary.

6. At the DISKPART> prompt, type format fs=fat32 quick. When the format is completed type active and then exit.

7. After you have completed these steps, copy all the fi les located on the Windows 7 installation DVD to the USB storage device.

8. Configure the BIOS computer on which you want to install Windows 7 to boot from the USB storage device. Attach the USB storage device and then reboot the computer to start installation.

There are several disadvantages to using USB storage devices as a Windows 7 installation source. Although they are reusable, USB storage devices are more expensive than DVD-ROMs. USB storage devices are also not suitable when you have to deploy Windows 7 to a large number of computers over a short amount of time because you need to attach a USB device to each computer to install Windows 7 on it. For example, if you wanted to deploy Windows 7 to 100 computers, you could configure 100 USB devices with the Windows 7 installation media and answer files for unattended installation

Please refer the following screenshot

To know how to install windows 7 in Tamil explanation please refer the following URL


http://www.youtube.com/watch?v=KKqeIsLPMIY