I would like to Install Ubuntu 17.10 on my computer (the latest release). I have an ISO image of Ubuntu 16.10 (non LTS). So can I upgrade from Ubuntu 16.10 to 17.10?. Also, considering the fact that the fresh install of Ubuntu 16.10 would mean to install all it's system updates and then further upgrading to 17.10, which is a better option, upgrading or fresh install of 17.10? Also, will upgrading would cost me my data equal to that of the size of the ISO image of Ubuntu 17.10 (i.e, 1.4GB)?