This process causes the drive to appear limited to the size of the chosen ISO file which can prevent you from continuing to use the drive for storage purposes. The DD method of copying, also commonly referred to as 'Data Destroyer' works by overwriting the entire file system on a flash drive with that of a CD or DVD image.

Some boot from USB tools use simple DD (Disk/Data Duplicator) copy and convert commands to directly burn ISO to USB. Once finished, you should have a ready to run Live USB containing the Live operating system, Windows installer, or system diagnostics utility, or advanced system cleaner tool you previously selected. Simply select your target flash drive, choose your distribution from the list, browse to the ISO file (or choose to download the ISO), and then click Create. Using this open source USB boot maker software is easy as 123. Universal USB Installer (UUI) | Bootable USB Software

How to Install Universal USB Installer in Linux?.

Essentials to Create a Bootable USB Flash Drive.

Universal USB Installer (UUI) | Bootable USB Software.

Universal USB Installer 2.0.1.9 free