There are lot of ways creating bootable usb drives, by installing or using softwares to create a bootable disk, but in this tutorial i will show how to create a bootable USB Disk Using only Command Prompt or MS-DOS






Follow this step by step tutorial to have your Bootable USB Drive,

Note: If you are creating a Windows Vista and other latest windows OS, you must use 4GB and up.
For Windows XP 1GB is enough.


Step 1:



  • Insert the USB
  • Start Command Prompt (CTRL+R and type CMD)
  • Type DISKPART and Enter


Step 2:


  • Type LIST DISK


Step 3:


  • Select your USB Disk: Type SELECT DISK #:
Note: Replace # With The number of your USB Drive

Step 4:



  • Clean the USB By Just Typing the Command CLEAN
(Clean - removes any existing partitions from the USB disk, including any hidden sectors)


Step 5:



  • After Cleaning the USB Create a Primary Partition: Type CREATE PARTITION PRIMARY
(Create Partition Primary - Creates a new primary partition with default parameters)


Step 6:


  • Type LIST PARTITION and hit enter


Step 7:




  • Select the Primary Partition  Type: SELECT PARTITION 1


Step 8:


  • Now type FORMAT FS=NTFS and hit enter. 
(FORMAT FS=NTFS - Formats the partition with the NTFS file system. This may take several minutes to complete, depending on the size of your USB key.)

Note:this will take some time

Step 9:



  • Type ACTIVE when Succesfully Marked as Active then type ASSIGN and hit enter
  • After that type EXIT to exit DISKPART and close CMD.
(ACTIVE - Sets the in-focus partition to active, informing the disk firmware that this is a valid system partition.)

(ASSIGN - Gives the USB drive a Windows volume and next available drive letter, which you should write down. In our case, drive “L” was assigned)

Step 10:


  • Copy all the Files and Folders of the Windows XP,Vista,7 or 8 to your USB.
Note: if your Windows installer does have an .ISO extension, use Winrar or Powere ISO to decompress it.


USB Is Now Ready and will work Perfectly!


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