A week or so after being thrown off of the default Ubuntu 13.04 disc image, the Ubuntu website is now also warning users against using WUBI to install Ubuntu 12.10.
In a message to the Ubuntu Devel Mailing list, Canonical's Steve Langasek states that the Ubuntu Foundations team '...does not expect Wubi to be in a releasable state for 13.04.'
There are many ways to install Ubuntu on a computer, some of which are simpler and easier than others. WUBI (Windows Ubuntu Installer) is an example of the easy approach. It offers the Ubuntu curious a relatively safe way to install Ubuntu on their PC from within Windows - negating the need for disk partitioning and adding an easy way to 'uninstall it' through Windows 'Add or Remove' feature. But changes to way the way the tool is provided in Ubuntu 12.04 are now being discussed.