I've been trying to install Ubuntu 12.04 on my new laptop (currently a Windows 7 OS) with a LiveCD, using 64-bit (Since the computer is only a few days old, and if it's newer than 2010, the 64-bit version is the one I should be using, correct?) and it boots to the installation just fine, but during installation it skips the step that gives me the option to dual boot with my current OS (something I would like to be able to do) and takes me to the screen with partitioning. On this screen, the partitioning menu is empty and all of the buttons are greyed out. Of course, if I press "install now" it gives me the error message,
No root file system defined. Please correct this from the partitioning menu.
So, I would like to know how to install Ubuntu to dual-boot, and I'd like to know how to solve this partitioning issue. Even though my computer doesn't run on Windows 8, it is still new, so would I be able to/should I install using wubi? As I said, I'm new to Linux and Ubuntu, so I apologize for my inexperience.