Hi Folks. Newbie here and not terribly computer savvy. I am running a dual boot with Windows 7 Home Premium and Ubuntu 13.10 on a Toshiba laptop A665D with 4GB memory. I installed 13.04 via a disk that I downloaded and then upgraded to 13.10 with a download. Things seem to be going okay with Ubuntu (printer and scanner work, music and photos work, internet works, backlighting on keyboard does not work). Windows is agonizingly slow, so I thought I would try to go all Ubuntu. Should I wipe my hard drive (Dban) and install a fresh build of Ubuntu or wipe out Windows with an install of Ubuntu by downloading and burning a new Ubuntu disk? If the latter, can I do that from the Ubuntu install I already have, and if so, how? I can't seem to find an answer on the forums. Thanks for any advice and remember, newbie here.