1. Open a command prompt.
2. Execute the mountvol command which will tell you all the volumes on your system and give you the GUID of them.
3. Execute with this format:
   chkdsk "\?\Volume{eb38d03c-29ed-11e2-be65-806e6f6e6963}"

For everyone for whom this doesn't work, if you are using a volume name with chkdsk, make sure that you do not have a trailing backslash after the right brace of the UUID!!