Cleaning up Ubuntu files from Windows

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http://askubuntu.com – Installed Ubuntu using wubi along side windows vista but on a separate drive (say E:, while my windows was in C:). It was all working fine. One fine day, when I logged into Ubuntu, got a popup from Ubuntu software center that a new version of Ubuntu is available for upgrade. Triggered the upgrade After ubuntu's upgrade, windows vista would work fine, but ubuntu wouldnt bootup, though I see ubuntu listed in the bootup screen Tried to uninstall ubuntu using wubi, but it woudlnt uninstall but rather throw an error I did a rather nasty thing here, by trying to format the drive, in which I had ubu (HowTos)