The error "Unable to Restore Original Profile" when starting the monitor profiling process might populate the first time that a profile is generated with the ColorMunki for your monitor or projector.  This is populated due to no ColorMunki generated monitor profile in place. The solution is to click OK and proceed. The profile that you build will be fine. Once a profile has been built the error will not reoccur. It happens because the ColorMunki software is attempting to load the existing monitor profile for use in the "Before-After" illustration.