I have installed wubi it is frozen but the key combinations suggested (https://wiki.edubuntu.org/WubiGuide#How_to_reboot_cleanly_even_when_the_keyboard.2BAC8-mouse_are_frozen) won't work.
It has frozen before and the combinations have worked but this time they don't. I am running 12.10. The computer froze while it was installing a software center app and I had the chrome webstore open,(in chromium) their is also a libre office text document open in the background.
I have already lost a wubi install by forced shutdown but now I cannot afford to corrupt the file system as windows is currently not working (long story). Any ideas.