Sorry but the root cause of the issue was not found. Possibly it was too long of a path in the program directory. I got an error of "path too long" when I attempted to make a copy of the LabVIEW 1012 directory. The error was for the following folder: "C:\Program Files (x86)\National Instruments\LabVIEW 2012\instr.lib\_niInstr\DSP\v1\FPGA\Private\Equalization\FIRFilterSimFiles\isim\EqSingleFilter_597026864DC13FFFA120CE82B9307E2D.dll.sim\unisim"
I don't know the function of the folder (and a bunch of other folders like it) but if it implies use of FPGA then I don't need it.
I learned that the "LabVIEW 2012" folder is not deleted during an uninstall. So when you reinstall there is the possibility that you are retaining some unwanted files and folders. The Repair option also did not work.
I renamed the current LV directory and did an install into the default path. Then LV was working again. I learned a lesson, though, and that is to make a backups of your installation folder before and after any changes. But then maybe not because I've not had an issue like this starting with LabVIEW 2.5.2. 🙂
