Selecting 'Something else' as my installtion option brings me to the partiion screen (other attachment) which appears to say the entire hard disk is free space. I attemtped to run the installer from the drive but the installer told me that 'This computer currently has no detected operating systems' and the default option is 'Erase disk and install Ubuntu'. I downloaded the 64-bit version of Ubuntu 13.10 from the official site and created a bootable flash drive using the Universal USB Installer from Anyway I'm attempting to dual boot Windows 7 (64-bit) and Ubuntu. Sorry for bothing everyone, I always feel a bit guilty signing up somewhere just to ask for help. Ubuntu installer: 'This computer has no detected operating systems.'