I am trying to install ubuntu 12.04 on windows 7. After running the wubi installer it downloaded the files but now the setup is just showing expanding and its been over 2 hours. Any solution ?
You don't have to mount iso in daemon-tools, that may cause many problems. Best way is to download the iso and WUBI installer. Place it in same folder on Windows and run WUBI.
WUBI installer has built-in iso-check so corrupt iso is not possible to pass. In some cases, WUBI automatically download 64bit version if you have CPU 64bit capable. That is a major problem if you have low RAM.
So, download the iso, download WUBI instaler, put them in same folder (do not mount ISO in daemon) and run WUBI as usual.
Hi I also had this problem. I "fixed it" (more like a work-around) by downloading Ubuntu 11.10 iso image (See the Oneiric download page), mounting it with Daemon tools, installing it inside windows using the built-in wubi, and then updated to 12.04 through the Ubuntu updater. It's a bummer and takes time, but at least it worked.
I hope they fix Wubi ASAP.
PS: Don't download Ubuntu 12.04 iso image as it doesn't come with "Wubi installer" anymore.