I'm the new to Ubuntu. Recently, I downloaded the ISO image (32-bit). I have a laptop in which Windows 7 is pre-installed and now I want to install Ubuntu alongside Windows 7. I have burned a DVD for it but I don't know how to install it.
Boot from the DVD and elect to install right away or "try Ubuntu" which gives you a live session that you can also launch the installer from.
During the install, Ubuntu will detect your Windows installation and ask you what you'd like to do about it, with a popular option being to install Ubuntu alongside Windows by having Ubuntu resize your Windows partition to make space for Ubuntu to install to.