Here are the two options to try and clear the Path File Access error:
1- The "Path File Access" error can occur when the ProWORX NxT file attributes have been changed over to "Read-only". Transferring them from a CD will cause this. Go into the ProWORX NxT file Properties and make sure the file attributes show "Archive". If "Read-only" is checked, uncheck and apply. This will clear the "Path File Access" error.
2- The "Path File Access" error usually has to do with Administrator rights on the PC. You should have full administrator rights on the PC and log on as Administrator. This will also clear the "Path File Access" error.