Wubi is an unofficial
Ubuntu installer for Windows. It gets installed as an application and can be uninstalled from Control Panel - Add or Remove Programs. A linux newbie can safely try linux other than
Live CD without worrying about partition woes.
ScreenshotsThe program will download the Ubuntu alternate distro. But if you already have the
Ubuntu alternate iso or cd which can be used to create an iso then you can use it and save the time of downloading. Simply put the iso in the C:\Wubi\Install Folder. You can check the version needed from Install Folder.
The program will skip the downloading part & check the checksum. Enjoy!
You can create iso from cd with
PowerISO or any other software of your choice.
P.S. Try at your risk! Backup is always handy.