How To Create Bootable USB from ISO File (Windows XP,7,8 & Ubuntu)


How to create bootable USB flash drive: Generally, we were using the CD or DVD to install an operating system on our computer. If anyhow you don’t have a windows 7 installation disk or either it is damaged, then you can make use of a bootable USB pen drive to install Windows, windows 8 or windows XP, Ubuntu on your PC. 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.


The process of create bootable windows USB flash drive is fairly easy, in this article we are going to tell you how to create bootable USB drive or pen drive for windows installation. To determine if a computer is capable of booting to a USB device, access the computer’s BIOS and check the bootable device list. If a USB device is listed, set the USB drive to be the first boot device. If you do not see a USB device in the list of bootable devices, your BIOS is not capable of booting to a USB device. (NOTE: You may need to have your USB flash drive plugged in when you access the BIOS).

Requirements to make a bootable USB

  • Require a windows 7 or windows 8 or windows XP ISO file or Ubuntu ISO file.
  • A USB flash drive (Pen drive or memory cards) with capacity 4 GB minimum. You can use more than 4 GB USB flash drive.

Instructions to create Bootable Windows/Ubuntu USB Flash Drive

Now follow the step by step instruction to create bootable USB drive from ISO

  • First of all you need to have a windows ISO file. You can make windows ISO file from its installation disk or download it from the internet.
  • Now download RUFUS, a small property portable software. One important thing about this software is no needed installation.
  • Plug in your USB flash drive into your computer.
  • Now format it in NTFS mode.
  • Now Run the software and browse the ISO file from your hard drive and select it.
  • Now click on start to create a bootable window 7 USB flash drive and wait 3-5 minutes of completing the process.

That’s all, you are done. Through this process, you can create bootable USB for Windows, but don’t follow these steps for Ubuntu.

Create bootable USB Ubuntu

To run Ubuntu from a USB flash drive, the first thing you need to do is insert a USB flash drive with at least 2GB of free space into your PC.

  • At first Download Pen Drive Linux’s USB Installer from here.
  • Now Select ‘Ubuntu’ from the drop down list.
  • Click ‘Browse’ and open the downloaded ISO file.
  • Choose the USB drive and click ‘Create’.
  • Now wait a few minutes of completing the process.

This is the easiest way to put Ubuntu onto your USB flash drive.

Create bootable USB drive for Windows Vista or Windows 7 with the help of Command Prompt

This is the other way to create bootable USB for Windows Vista or Windows 7 especially.

  • At first open Command Prompt by clicking Start, typing in cmd in the search text field, then press at the same time CTRL + Shift + Enter on your keyboard.
  • At the command prompt, type cd c:windowssystem32 to change the directory to the Windows system32 directory. Ensure your USB drive is plugged in, type DISKPART, then press Enter. Type LIST DISK and press Enter.
  • You will see a listing of the disk drives connected to your computer. Find the disk number of your USB drive and type SELECT DISK [USB disk #], where “[USB disk #]” is the disk # for your USB drive. It should now state that your USB drive is the selected disk. If you’re not sure what disk is the USB disk, eject the USB drive, perform step number 2 again, connect the USB drive again, and compare the results. Usually the USB drive will be the last 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.
(may take a couple minutes, depending on the
USB drive size)

Keep the command prompt window open, but you can minimize it for a little bit.

Alao read: How To Extend Internet Download Manager (IDM) 30 Days Trail period 

  • You will now need your Windows Vista or 7 Installation DVD. Put the DVD in your computer’s DVD drive. Open up My Computer and note which drive letter is assigned to your DVD Drive and your USB flash drive.
  • 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.
(Where “H” is your USB drive letter)
  • The last step is to copy the entire contents of the Windows DVD to your USB flash drive. To do this, in the My Computer window (opened in step 5 above), right-click on the DVD drive and select Open to view the contents of the DVD. Copy all the files and folders on the DVD to the USB flash drive.
  • Your USB flash drive is now set up to be a bootable USB drive for Windows Vista or 7.

You are done with your bootable USB. You can now use this bootable USB as a bootable DVD on any computer that comes with the USB boot feature (most of the current motherboards support this feature).


There are many software to create bootable USB in the internet, but we choose Rufus for windows and Pen Drive Linux’s USB Installer for Ubuntu because these software are easy to use. If you want to create bootable USB for xp or if you face any problem then leave a comment. If you like this article then share it with your friends.

Speak Your Mind