Creating a bootable usb pendrive using command prompt is not hard, it is one of the most common ways to create a bootable usb pendrive.
To Create Bootable USB Without Any Software In Windows 11/10 using command prompt (cmd) is not a hard task, any one with basic computer knowledge can make it.
If your operating system is windows xp or windows 8 , you cannot select the primary partition in command prompt for creating bootable usb pendrive.