You can install and run Ubuntu from within Windows without any risk of accidentally deleting your existing programs and files by using Wubi, an unofficial Ubuntu installer for Windows users.

Wubi is an Ubuntu installer for Windows that lets you install and uninstall Ubuntu from a Windows desktop. Wubi adds an entry to the Windows boot menu which allows you to run Linux.

I don’t have the patience to go through a full install of Ubuntu but I also don’t think that running the Live CD does the operating system justice. If only there were an easy-to-use Windows installer that didn’t "require you to modify the partitions of your PC or to use a different bootloader." Enter Wubi.

WUBI dramatically reduces the gap that prevents windows users to try Ubuntu. If you are wondering what WUBI is all about, you may get some idea from my post “WUBI - A wonderful little gem that helps windows users to try Ubuntu“. Yes, with WUBI, installing Ubuntu is just like installing Firefox or Thunderbird on a windows machine.

Wubi is an unofficial Ubuntu installer for Windows users that will bring you into the Linux world with a single click. Wubi allows you to install and uninstall Ubuntu as any other application. If you heard about Linux and Ubuntu, if you wanted to try them but you were afraid, this is for you

Wubi is an officially supported Ubuntu installer for Windows users that can bring you to the Linux world with a single click. Wubi allows you to install and uninstall Ubuntu as any other Windows application, in a simple and safe way. Are you curious about Linux and Ubuntu? Trying them out has never been easier!

I was chatting with...[a] geeky friend ... and he told me about this new Windows installer called Wubi for Ubuntu. You can install Ubuntu on Windows like you would any other executable and uninstall it from the Add/Remove Programs menu.

UNetbootin is a tool that allows you to install various Linux distributions (Ubuntu, Fedora, Mandriva, OpenSuSE, Debian, ArchLinux) from a Windows or a Linux desktop over the internet (i.e., you don't need to burn the Ubuntu, Fedora, ... CDs). Unlike the Ubuntu installation with Wubi, real partitions are created during the installation.

You will find in this article, a step-by-step guide on how to dual-boot Ubuntu 11.10 and Windows 7 on a computer with two hard drives. The steps involved in this tutorial are very simple.