To stop your antivirus from deleting these files again, you must tell it to ignore the Lumion directory. Windows Security , go back to Virus & threat protection settings Manage settings Scroll down to Exclusions Add or remove exclusions Add an exclusion and select Navigate to your Lumion installation folder (e.g., C:\Program Files\Lumion [Version] ) and select the subfolder. Confirm the selection to white-list the folder. Alternative Fix: The "onnxruntime.dll" Issue (Lumion 10) If you are using Lumion 10.0 to 10.3.2 , a Windows 10 update (v2004) may cause a conflict with the onnxruntime.dll onnxruntime.dll ...\Lumion 10.x\3rd ) into the root folder Lumion.exe is located. Additional Troubleshooting
How To FIX Channel Not Found In Installation Error In Lumion To stop your antivirus from deleting these files