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