I recently downloaded Ubuntu 12.04 LTS amd64 to my Windows machine, because I would like to install it on several similar machines, however, when I extracted the ISO and ran WUBI, it made me download Ubuntu again. Any ways around this?
Don't extract the ISO. Save it in the same folder as
wubi.exe and run Wubi and it will use the ISO.
Make sure you have the right version of
wubi.exe. Either copy it from the ISO or download it from the same place you got the ISO i.e. http://releases.ubuntu.com/12.04/
Also, you can run it from a mounted ISO (not extracted) as long as you use the
--force-wubi option (i.e. run