[wubi] windows destroyed my wubi

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http://ubuntuforums.org – Hello I had downloaded and installed wubi about a month ago, dual booting with windows 7 pro and everything was working fine, until about an hour ago when windows 7 started running chkdsk on boot while I had walked away. I came back to find it about 70% done just going to town with "deleting <enter file name here>". After successfully logging in to windows, i tried to reboot into ubuntu to no avail, it goes straight to grub. After poking around a bit, i found C:\ubuntu\disks\root.disk, which was last modified 12 hours ago (when I had last shut down my machine), to be 0 kb. (Hardware)