ERROR_MCA_UNSUPPORTED_MCCS_VERSION 0x80073B64

Error code 15204 · HRESULT 0x80073B64

WINDOWS

The Monitor Configuration API only works with monitors that support the MCCS 1.0 specification, MCCS 2.0 specification or the MCCS 2.0 Revision 1 specification.

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_MCA_UNSUPPORTED_MCCS_VERSION is a Windows error code (system error 15204, returned as HRESULT 0x80073B64) reported by Windows. Its official message is: “The Monitor Configuration API only works with monitors that support the MCCS 1.0 specification, MCCS 2.0 specification or the MCCS 2.0 Revision 1 specification.”

How to fix ERROR_MCA_UNSUPPORTED_MCCS_VERSION

  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_MCA_UNSUPPORTED_COLOR_TEMPERATUREERROR_MCA_INTERNAL_ERRORERROR_MCA_MCCS_VERSION_MISMATCHERROR_MCA_INVALID_TECHNOLOGY_TYPE_RETURNEDERROR_MCA_MONITOR_VIOLATES_MCCS_SPECIFICATIONERROR_MCA_INVALID_VCP_VERSIONERROR_MCA_INVALID_CAPABILITIES_STRING

Source: Microsoft WinError.h

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