19) Unless you plan to reboot, when you stop the client with CTRL-C be sure that the processes FahCore_a1.exe and mpiexec and/or smpd have stopped. Many folks are finding that they need to kill mpiexec manually and or stop/start the smpd service. If you restart the client without doing this, the WU may be deleted. A common message is MISSING_WORK_FILES.
Save this into a batch file:
then to exit, first Ctrl+C then run the batch file. No more deleted work units
TASKKILL /F /IM "FahCore_a1.exe"
TASKKILL /F /IM "mpiexec.exe"
TASKKILL /F /IM "smpd.exe"