ERROR_NOT_GUI_PROCESS 0x800705BF

Error code 1471 · HRESULT 0x800705BF

WINDOWS

Unable to finish the requested operation because the specified process is not a GUI process.

Windows troubleshooting diagram: Device Manager warning and a system file scan
Windows errors: check drivers, system files and Event Viewer, in that order.

What it means

ERROR_NOT_GUI_PROCESS is a Windows error code (system error 1471, returned as HRESULT 0x800705BF) reported by Windows. Its official message is: “Unable to finish the requested operation because the specified process is not a GUI process.”

How to fix ERROR_NOT_GUI_PROCESS

  1. Reboot once — many one-off system codes disappear with a clean restart
  2. Repair system files: 'sfc /scannow' then 'DISM /Online /Cleanup-Image /RestoreHealth'
  3. Find the source in Event Viewer → System: filter for this exact code and open its provider link

Related errors

ERROR_NO_NVRAM_RESOURCESERROR_AUTHIP_FAILUREERROR_WRONG_COMPARTMENTERROR_PATH_NOT_FOUNDERROR_ACCESS_DENIEDERROR_NOT_ENOUGH_MEMORYERROR_INVALID_DATAERROR_WRITE_PROTECT

Source: Microsoft WinError.h

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