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DisplayFusion.Log - Full of Win32 Exceptions on nvsmartmaxapp.exe

Sebastian Graser

1 discussion post

As i was investigating if Windows Defender is doing "to much" on some files (as i experienced performance issues) i got aware of DisplayFusions.log .... the file (around 9000 lines since 11 a.m) is full of entries like these

(These lines repeat .....)

2025/12/24 23:32:45.5993##_##INFO:L1##_##displayfusionservice.exe:12.0.1.0:33044##_##DFRemoteHandlers:IsFileRunning:53##_##-##_##Not Running: 'C:\WINDOWS\System32\DriverStore\FileRepository\nv_dispi.inf_amd64_14ee77829c8bb2f4\nvsmartmaxapp64.exe'##_##-
2025/12/24 23:33:45.5355##_##INFO:L1##_##displayfusionservice.exe:12.0.1.0:33044##_##BFIpc.Server:StartIpcHandlerWorkerTHREAD:133##_##-##_##IPC Received [DFServicev11]: IsFileRunning##_##-
2025/12/24 23:33:45.5360##_##INFO:L1##_##displayfusionservice.exe:12.0.1.0:33044##_##DFRemoteHandlers:IsFileRunning:37##_##-##_##Path: 'C:\WINDOWS\System32\DriverStore\FileRepository\nv_dispi.inf_amd64_14ee77829c8bb2f4\nvsmartmaxapp.exe'##_##-
2025/12/24 23:33:45.5437##_##FAIL:L1##_##displayfusionservice.exe:12.0.1.0:33044##_##BFProcessHelpers.Static.GetProcessMainFileName:GetProcessMainFileNameOldMethodNOCACHE:79##_##-##_##processId: 172, Zugriff verweigert, Exception.HResult: E_FAIL (0x80004005), [System.ComponentModel.Win32Exception]##_##-
2025/12/24 23:33:45.5498##_##FAIL:L1##_##displayfusionservice.exe:12.0.1.0:33044##_##BFProcessHelpers.Static.GetProcessMainFileName:GetProcessMainFileNameOldMethodNOCACHE:79##_##-##_##processId: 212, Zugriff verweigert, Exception.HResult: E_FAIL (0x80004005), [System.ComponentModel.Win32Exception]##_##-
2025/12/24 23:33:45.5603##_##FAIL:L1##_##displayfusionservice.exe:12.0.1.0:33044##_##BFProcessHelpers.Static.GetProcessMainFileName:GetProcessMainFileNameOldMethodNOCACHE:79##_##-##_##processId: 2064, Zugriff verweigert, Exception.HResult: E_FAIL (0x80004005), [System.ComponentModel.Win32Exception]##_##-
2025/12/24 23:33:45.5855##_##INFO:L1##_##displayfusionservice.exe:12.0.1.0:33044##_##DFRemoteHandlers:IsFileRunning:53##_##-##_##Not Running: 'C:\WINDOWS\System32\DriverStore\FileRepository\nv_dispi.inf_amd64_14ee77829c8bb2f4\nvsmartmaxapp.exe'##_##-
2025/12/24 23:33:45.5894##_##INFO:L1##_##displayfusionservice.exe:12.0.1.0:33044##_##BFIpc.Server:StartIpcHandlerWorkerTHREAD:133##_##-##_##IPC Received [DFServicev11]: IsFileRunning##_##-
2025/12/24 23:33:45.5899##_##INFO:L1##_##displayfusionservice.exe:12.0.1.0:33044##_##DFRemoteHandlers:IsFileRunning:37##_##-##_##Path: 'C:\WINDOWS\System32\DriverStore\FileRepository\nv_dispi.inf_amd64_14ee77829c8bb2f4\nvsmartmaxapp64.exe'##_##-
2025/12/24 23:33:45.6054##_##FAIL:L1##_##displayfusionservice.exe:12.0.1.0:33044##_##BFProcessHelpers.Static.GetProcessMainFileName:GetProcessMainFileNameOldMethodNOCACHE:79##_##-##_##processId: 172, Zugriff verweigert, Exception.HResult: E_FAIL (0x80004005), [System.ComponentModel.Win32Exception]##_##-
2025/12/24 23:33:45.6166##_##FAIL:L1##_##displayfusionservice.exe:12.0.1.0:33044##_##BFProcessHelpers.Static.GetProcessMainFileName:GetProcessMainFileNameOldMethodNOCACHE:79##_##-##_##processId: 212, Zugriff verweigert, Exception.HResult: E_FAIL (0x80004005), [System.ComponentModel.Win32Exception]##_##-
2025/12/24 23:33:45.6240##_##FAIL:L1##_##displayfusionservice.exe:12.0.1.0:33044##_##BFProcessHelpers.Static.GetProcessMainFileName:GetProcessMainFileNameOldMethodNOCACHE:79##_##-##_##processId: 2064, Zugriff verweigert, Exception.HResult: E_FAIL (0x80004005), [System.ComponentModel.Win32Exception]##_##-
2025/12/24 23:33:45.6436##_##INFO:L1##_##displayfusionservice.exe:12.0.1.0:33044##_##DFRemoteHandlers:IsFileRunning:53##_##-##_##Not Running: 'C:\WINDOWS\System32\DriverStore\FileRepository\nv_dispi.inf_amd64_14ee77829c8bb2f4\nvsmartmaxapp64.exe'##_##-
2025/12/24 23:34:45.5369##_##INFO:L1##_##displayfusionservice.exe:12.0.1.0:33044##_##BFIpc.Server:StartIpcHandlerWorkerTHREAD:133##_##-##_##IPC Received [DFServicev11]: IsFileRunning##_##-
2025/12/24 23:34:45.5373##_##INFO:L1##_##displayfusionservice.exe:12.0.1.0:33044##_##DFRemoteHandlers:IsFileRunning:37##_##-##_##Path: 'C:\WINDOWS\System32\DriverStore\FileRepository\nv_dispi.inf_amd64_14ee77829c8bb2f4\nvsmartmaxapp.exe'##_##-
2025/12/24 23:34:45.5469##_##FAIL:L1##_##displayfusionservice.exe:12.0.1.0:33044##_##BFProcessHelpers.Static.GetProcessMainFileName:GetProcessMainFileNameOldMethodNOCACHE:79##_##-##_##processId: 172, Zugriff verweigert, Exception.HResult: E_FAIL (0x80004005), [System.ComponentModel.Win32Exception]##_##-
2025/12/24 23:34:45.5573##_##FAIL:L1##_##displayfusionservice.exe:12.0.1.0:33044##_##BFProcessHelpers.Static.GetProcessMainFileName:GetProcessMainFileNameOldMethodNOCACHE:79##_##-##_##processId: 212, Zugriff verweigert, Exception.HResult: E_FAIL (0x80004005), [System.ComponentModel.Win32Exception]##_##-
2025/12/24 23:34:45.5678##_##FAIL:L1##_##displayfusionservice.exe:12.0.1.0:33044##_##BFProcessHelpers.Static.GetProcessMainFileName:GetProcessMainFileNameOldMethodNOCACHE:79##_##-##_##processId: 2064, Zugriff verweigert, Exception.HResult: E_FAIL (0x80004005), [System.ComponentModel.Win32Exception]##_##-
2025/12/24 23:34:45.5827##_##INFO:L1##_##displayfusionservice.exe:12.0.1.0:33044##_##DFRemoteHandlers:IsFileRunning:53##_##-##_##Not Running: 'C:\WINDOWS\System32\DriverStore\FileRepository\nv_dispi.inf_amd64_14ee77829c8bb2f4\nvsmartmaxapp.exe'##_##-
2025/12/24 23:34:45.5898##_##INFO:L1##_##displayfusionservice.exe:12.0.1.0:33044##_##BFIpc.Server:StartIpcHandlerWorkerTHREAD:133##_##-##_##IPC Received [DFServicev11]: IsFileRunning##_##-
2025/12/24 23:34:45.5904##_##INFO:L1##_##displayfusionservice.exe:12.0.1.0:33044##_##DFRemoteHandlers:IsFileRunning:37##_##-##_##Path: 'C:\WINDOWS\System32\DriverStore\FileRepository\nv_dispi.inf_amd64_14ee77829c8bb2f4\nvsmartmaxapp64.exe'##_##-
2025/12/24 23:34:45.5941##_##FAIL:L1##_##displayfusionservice.exe:12.0.1.0:33044##_##BFProcessHelpers.Static.GetProcessMainFileName:GetProcessMainFileNameOldMethodNOCACHE:79##_##-##_##processId: 172, Zugriff verweigert, Exception.HResult: E_FAIL (0x80004005), [System.ComponentModel.Win32Exception]##_##-
2025/12/24 23:34:45.5968##_##FAIL:L1##_##displayfusionservice.exe:12.0.1.0:33044##_##BFProcessHelpers.Static.GetProcessMainFileName:GetProcessMainFileNameOldMethodNOCACHE:79##_##-##_##processId: 212, Zugriff verweigert, Exception.HResult: E_FAIL (0x80004005), [System.ComponentModel.Win32Exception]##_##-
2025/12/24 23:34:45.6020##_##FAIL:L1##_##displayfusionservice.exe:12.0.1.0:33044##_##BFProcessHelpers.Static.GetProcessMainFileName:GetProcessMainFileNameOldMethodNOCACHE:79##_##-##_##processId: 2064, Zugriff verweigert, Exception.HResult: E_FAIL (0x80004005), [System.ComponentModel.Win32Exception]##_##-
2025/12/24 23:34:45.6159##_##INFO:L1##_##displayfusionservice.exe:12.0.1.0:33044##_##DFRemoteHandlers:IsFileRunning:53##_##-##_##Not Running: 'C:\WINDOWS\System32\DriverStore\FileRepository\nv_dispi.inf_amd64_14ee77829c8bb2f4\nvsmartmaxapp64.exe'##_##-

Any idea what displayfusion wants to do and why this fails .... ?

5 days ago • #1

DisplayFusion will look for those files if you have split enabled and have chosen yes to disable the Nvidia helper processes. It has to re-check frequently, because driver updates re-create the helpers.

Please let us know if you have any further questions at all.

Thanks!

9 hours ago • #2

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DisplayFusion.Log - Full of Win32 Exceptions on nvsmartmaxapp.exe