How to fix HFSS simulations hanging at 'cleaning directories'

To resolve the issue of HFSS simulations hanging at 'cleaning directories,' follow these steps:

1. Close the Ansys application
2. Rename the Ansoft folder located in Documents to Ansoft.old
3. Relaunch AEDT and apply the following settings:
   • Navigate to Tools > Options > HPC and Analysis Options and set the MPI Version to 2021
   
   
   
   
4. Run the simulation again
5. If the issue persists, install and configure Microsoft MPI. For detailed instructions, refer to the installation guide for Microsoft MPI