Dual boot your Windows machine with Ubuntu WITHOUT TOUCHING THE PARTITIONS. This really is so easy your grand mother can do it. Wubi can install in a regular directory within windows and uninstall just like any other app!
Run Wubi, select a new password, click “install”, and that’s it. The installation process from is fully automatic from here. The rest of the installation files will be downloaded and confirmed, after which you’ll get the standard windows wants to reboot. Do so and select Ubuntu at the boot screen. The installation will continue for another few minutes depending on how old your machine is and will reboot once again. Choose Ubuntu at the boot screen again and enjoy.
You can uninstall it just as you do with any other windows application. Find “Add or Remove Programs” and look for Wubi/Ubuntu. Remove it and it’s gone. There’s also an uninstaller in the installation directory if you want to just browse for that.
The only requirements are 256Meg of memory, 5GB of disk space, and Windows 98, 2000, XP, or Vista.