Possible Duplicate:
Can I install 12.04 inside Windows?
I have a friend who is looking at Ubuntu and he wanted to install it as a Windows app so he could easily uninstall it if he were not interested.
He downloaded the Ubuntu 12.04 64bit iso
However the WUBI loader told him to restart the computer with the disc in the tray. How do you install Ubuntu in Windows?
--force-wubi