Start a thread in the Mountain Lion Mac OS X forum, if you need help repairing and restoring your system. This is about setting up a Mac to run Windows natively on its own partiton.
DU is not conclusive running verify while booted from a hard drive you want to check, it should be done from Recovery partition or another bootable disk with same version of OS X and DU.
You can't repair, you can verify - but I never use verify. Keep a clone of your system, and of course Recovery.
Do you have an issue with Boot Camp? maybe this should be moved again.