Monday, 21 September 2015

Creating bootable USB disk from Windows OS

Today, I would like to share my knowledge on how to make bootable USB drive without any third party applications. To begin with, you will need a USB flash drive, any version of Windows OS ISO or DVD and Windows running PC. As part of the process, USB disk will be erased fully. Please make sure that you have copied or removed your important data from USB disk.

I will use DiskPart command to make bootable USB disk. Let’s start with the process:
  • Run Command prompt as an administrator.
  • Type DiskPart and press Enter. You will see that command prompt is changed to DISKPART> now.
  • Type List Disk Command. It will show you all available disks in PC.
    • DISKPART> List Disk
  • Next step is to select the correct Disk that reflects your USB disk. To find this out, type below command:
    • DISKPART> Select Disk n (n should be the number of your disk from previous command)
      • You should see a message: “Disk 3 is now the selected disk.”
  • Now, clean the USB disk using Clean command.
    • DISKPART> Clean
      • It will show, “DiskPart succeeded in cleaning the disk.”
  • Now, enter the following sets of commands in this order
    • ACTIVE
  • Formatting of your USB drive may vary from its size. Once it’s completed, type below two commands:
      • It shows, “DiskPart successfully assigned the drive letter or mount point.”
  • DISKPART> exit
At this point, you will come out from DiskPart utility and will use your command prompt to follow next process.

Type D: cd boot (D: represents my DVD drive, please change it to appropriate drive letter as per your PC’s configuration)

Enter command, cd boot

Now, type bootsect.exe /nt60 E: ( E: drive represents my USB Disk drive)

Once this command has been executed successfully, you can exit the command prompt. Now, copy all files on Windows 7 DVD to the USB drive.

Your USB Disk is ready with bootable option. To test this, please restart your PC and choose boot from USB. I hope you liked this article, please leave your comments below.


  1. Thanks for sharing ☺️👍🏻

  2. Replies
    1. Hi Chris,

      We haven't tested it on Mac iOS. So, we are unable to confirm this.

      TechieTalks Team