Sorry, this is probably a duplicate but i cant seem to find exactly what im looking for. I have lubuntu installed on my computer right now, and would like to switch it to just regular ubuntu. I made a bootable usb of ubuntu 14.0.4 using startup disk creator, and assumed i would install it by launching grub during the boot process, although when i do that i don't see an option to boot from the usb.. The options i get are
"*Ubuntu (which just launches my desktop)
Advanced options for Ubuntu
Memory test (memtest86+)
Memory test (memtest86+, serial console 115200"
Am i doing something wrong? Missing a step? Any help would be greatly appreciated.