I currently have 3 Ubuntu installations (one 32 bit 14.04, one 32 bit 14.10 and a 64 bit 14.10) and a windows7 installed on my system.
I want just one windows7 installation and one 64 bit 14.10 Ubuntu on my system. However the currently installed 64 bit 14.10 Ubuntu is on a small drive and I want it removed and install it on a larger drive.
So, my question is, armed with a bootable USB loaded with Ubuntu 14.10 64 bit, how do I go about erasing the previous 3 Ubuntu installations and install a fresh one on my desired drive?