I'm new to Ubuntu and just finished creating a USB installation drive with Ubuntu 16.04.2 LTS iso file. I plan to rewrite my entire drive, using only Ubuntu. I'm ditching Windows for good. After completing the USB drive, I read about the different flavours of Ubuntu and would like to try Kubuntu. Do I need to create a new USB install drive using the Kubuntu iso file or will I be able to select different flavours once Ubuntu is installed with the USB I've already created.