You don’t have to dedicate the whole drive to the Ubuntu system. The Ubuntu Startup Disk Creator allows the user to convert a USB drive or SD card into a drive from which you can run your Ubuntu system easily. We recommend one of the other tools mentioned here like Rufus. In addition, UNnetbootin isn’t as reliable as it once was. NOTE: The resulting USB drive is only bootable on PCs, not Macs. Either use UNetbootin to download one of the many Linux distributions it supports or provide the location of your own Linux IOS file. UNetbootin is a free program for both Windows, Linux and MacOS X that allows the user to create bootable Live USB drives for Ubuntu, Fedora, and other Linux distributions instead of burning a CD. Related: Best Software for Data Recovery From USB & SD Card Make bootable USB with unetbootin ubuntu
Click download Rufus from its official website free. Rufus runs in both 32-bit and 64-bit versions of Windows. It also allows you to check the USB device for bad blocks, using up to four passes. Rufus is a small portable program that allows you to create bootable USB drives for Windows and Linux.