I successfully installed 12.04 with wubi on a Windows 7 machine. but after a restart, remaining installation process failed to work.
About 2/3rds of the installation had completed..
How can I solve it?
If you have DVD or USB for installation then try to reinstall ubuntu form windows wubi installer and when PC is restart , select ubuntu and it will take approx 1/2 hours for complete installation and disconnect the internet.
If you are installing using powere iso or other disk image, then make it bootable at startup.
** " your installation DVD/USB should not have any error or missing files"