I have a kingston 8gb pendrive i had tried to make a bootable pendrive by using command prompt and i failed. I also made my pendrive partition so capacity of my pendrive falled from from 8 gb to 3.44 gb. I also formatted after this. But my pendrive capacity is still 3.44gb so please help me....

<p><b>Resolution:</b><br /> <p>The USB Flash Drive must be configured with an active primary MS-DOS partition. It must also contain the boot files. Follow the steps below to create a bootable USB Flash Drive. <br /> <p><b>Requirements:</b><br /> <ul> <li> Motherboard with BIOS that supports USB boot. <li> USB Flash Drive that may be erased. <li> Bootable floppy disk or CD with Fdisk and Format commands. </li></ul> <p><b>Directions:</b><br /> <ol> <li> Plug in the USB Flash Drive. <li> Make the USB drive the only bootable hard drive. <b>Method 1:</b><br />If available, change the BIOS settings for the hard drive sequence, making sure the USB device is at the top of the list above all other hard drives. Not all BIOS Setup Utilities have this option. <b> Method 2:</b><br /> Disable all hard drives in the BIOS. In some BIOS Setup Utilities you can disable the individual hard drives, while in others you will need to disable the controller. <b> Method 3:</b><br /> Unplug all hard drive cables inside the case. If the cables are unplugged the computer cannot detect and boot to the hard drive. <li> Insert the bootable floppy disk or CD into the appropriate drive. <li> Restart the computer to the bootable floppy disk or CD. <li> At the command prompt, type: FDisk. <li> Delete and create a new active primary DOS partition. <li> Use FDisk to delete all partitions from the USB Flash Drive. <ul> <li> In FDisk, press the 3 key to Delete partition or Logical DOS Drive. <li> If there is just one partition on the drive, choose 1 to delete the primary DOS partition. If there are several partitions, the extended and logical partitions must be deleted before the primary partition. <li> After choosing option 1, the screen appears with partition information and a prompt for the partition to delete. Choose which primary DOS partition to delete, and then press ENTER. <li> A prompt appears to enter the volume label of the hard drive. Enter the label exactly as it appears on the top of the screen in the partition information. If the volume label contains gibberish or lowercase letters, the partition will have to be deleted as a non-DOS partition. Try using the option to delete a non-DOS partition in FDISK. After entering the volume label, press ENTER. <li> You are prompted if it should delete the partition. Press Y for Yes, and then press ENTER. <li> The screen changes to show only the total disk space and a line near the bottom that prompts that the primary DOS partition has been deleted. Press the ESC key to return to the main menu. </li></ul> <li> Use FDisk to create a primary partition on the USB Flash Drive. The drive letter will be C:, since all other hard drives were disabled in step 2. <ul> <li> In FDisk, press 1 to Create DOS partition or Logical DOS drive. <li> Press 1 to Create a Primary DOS Partition. <li> The next screen prompts if the maximum hard disk size should be made into one partition. Press the Y key, and then press ENTER. <li> The next screen prompts that the computer will now reboot. Press ENTER to continue. </li></ul> <li> Exit FDisk and restart the computer. <li> Start the computer from the bootable floppy disk or CD with the USB Flash Drive still connected. <li> At the command prompt, run Format by typing the following command: Format c: /s. Press ENTER. <li> At the command prompt, run FDisk by typing following command: Fdisk /mbr. Press ENTER. <li> Restart the computer without the bootable floppy disk or CD, and attempt to boot to the USB Flash Drive. If it works, it should go to a C:\&gt; command prompt. <li> Change the settings made in step 2 back so that the computer operates normally again. </li></ol>

Having a bootable USB is very essential, especially if you are a Netbook user. Using bootable USB to install an operating system (OS) not only makes the installation faster, but also saves a DVD.Creating or using an USB drive to install Windows operating systems is very easy if you follow the below mentioned steps.

Here we assume that you are using either Vista or Windows 7 to create a bootable USB.

1. 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.

2. 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.
3. 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.
4. 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 as we need to execute one more command at the next step. Just minimize it.

5. Insert your Windows DVD in the optical drive and note down the drive letter of the optical drive and USB media. Here I use "D" as my optical (DVD) drive letter and "H" as my USB drive letter.

6. Go back to command prompt and execute the following commands:

D:CD BOOT and hit enter. Where "D" is your DVD drive letter.CD BOOT and hit enter to see the below message.BOOTSECT.EXE/NT60 H:(Where "H" is your USB drive letter)

7. Copy Windows DVD contents to USB.You are done with your bootable USB. You can now use this bootable USB as bootable DVD on any computer that comes with USB boot feature (most of the current motherboards support this feature).Note that this bootable USB guide will not work if you are trying to make a bootable USB on XP computer.

The USB Flash Drive must be configured with an active primary MS-DOS partition. It must also contain the boot files. Follow the steps below to create a bootable USB Flash Drive.
Requirements:

• Motherboard with BIOS that supports USB boot.
• USB Flash Drive that may be erased.
• Bootable floppy disk or CD with Fdisk and Format commands.

Directions:

1. Plug in the USB Flash Drive.
2. Make the USB drive the only bootable hard drive. Method 1:
   If available, change the BIOS settings for the hard drive sequence, making sure the USB device is at the top of the list above all other hard drives. Not all BIOS Setup Utilities have this option. Method 2:
   Disable all hard drives in the BIOS. In some BIOS Setup Utilities you can disable the individual hard drives, while in others you will need to disable the controller. Method 3:
   Unplug all hard drive cables inside the case. If the cables are unplugged the computer cannot detect and boot to the hard drive.
3. Insert the bootable floppy disk or CD into the appropriate drive.
4. Restart the computer to the bootable floppy disk or CD.
5. At the command prompt, type: FDisk.
6. Delete and create a new active primary DOS partition.
7. Use FDisk to delete all partitions from the USB Flash Drive.
   • In FDisk, press the 3 key to Delete partition or Logical DOS Drive.
   • If there is just one partition on the drive, choose 1 to delete the primary DOS partition. If there are several partitions, the extended and logical partitions must be deleted before the primary partition.
   • After choosing option 1, the screen appears with partition information and a prompt for the partition to delete. Choose which primary DOS partition to delete, and then press ENTER.
   • A prompt appears to enter the volume label of the hard drive. Enter the label exactly as it appears on the top of the screen in the partition information. If the volume label contains gibberish or lowercase letters, the partition will have to be deleted as a non-DOS partition. Try using the option to delete a non-DOS partition in FDISK. After entering the volume label, press ENTER.
   • You are prompted if it should delete the partition. Press Y for Yes, and then press ENTER.
   • The screen changes to show only the total disk space and a line near the bottom that prompts that the primary DOS partition has been deleted. Press the ESC key to return to the main menu.
8. Use FDisk to create a primary partition on the USB Flash Drive. The drive letter will be C:, since all other hard drives were disabled in step 2.
   • In FDisk, press 1 to Create DOS partition or Logical DOS drive.
   • Press 1 to Create a Primary DOS Partition.
   • The next screen prompts if the maximum hard disk size should be made into one partition. Press the Y key, and then press ENTER.
   • The next screen prompts that the computer will now reboot. Press ENTER to continue.
9. Exit FDisk and restart the computer.
10. Start the computer from the bootable floppy disk or CD with the USB Flash Drive still connected.
11. At the command prompt, run Format by typing the following command: Format c: /s. Press ENTER.
12. At the command prompt, run FDisk by typing following command: Fdisk /mbr. Press ENTER.
13. Restart the computer without the bootable floppy disk or CD, and attempt to boot to the USB Flash Drive. If it works, it should go to a C:\> command prompt.
14. Change the settings made in step 2 back so that the computer operates normally again.