ERROR_BAD_MCFG_TABLE 0x80070317

Error code 791 · HRESULT 0x80070317

WINDOWS

The resources required for this device conflict with the MCFG table.

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_BAD_MCFG_TABLE is a Windows error code (system error 791, returned as HRESULT 0x80070317) reported by Windows. Its official message is: “The resources required for this device conflict with the MCFG table.”

How to fix ERROR_BAD_MCFG_TABLE

  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_LOST_WRITEBEHIND_DATA_LOCAL_DISK_ERRORERROR_DISK_REPAIR_REDIRECTEDERROR_LOST_WRITEBEHIND_DATA_NETWORK_SERVER_ERRORWININET_E_CANNOT_CONNECTWININET_E_SECURITY_CHANNEL_ERRORWININET_E_DECODING_FAILEDCBS_E_SOURCE_MISSINGCBS_E_INSTALLERS_FAILED

Source: Microsoft WinError.h

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