That's not a bug file - it's the wubildr.mbr which is used to boot Ubuntu that is installed through Wubi.
There is a Wubi log file that provides information on the install attempt and diagnostics on why it may have been unsuccessful. To check this, hit the windows start key and enter: %temp%\wubi-11.04-rev211.log In some cases, Wubi completes successfully but the computer still boots into Windows without offering a choice between Ubuntu and Wubi. Please describe in detail what happened during the install and any errors e.g. popup error messages - to help figure out what issue you are having. ** Changed in: wubi Status: New => Invalid ** Converted to question: https://answers.launchpad.net/wubi/+question/167939 -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/826135 Title: installation problem To manage notifications about this bug go to: https://bugs.launchpad.net/wubi/+bug/826135/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs