ERROR_EVT_FILTER_UNSUPPORTEDOP 0x80073AAC

Error code 15020 · HRESULT 0x80073AAC

WINDOWS

This operator is unsupported by this implementation of the filter.

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_EVT_FILTER_UNSUPPORTEDOP is a Windows error code (system error 15020, returned as HRESULT 0x80073AAC) reported by Windows. Its official message is: “This operator is unsupported by this implementation of the filter.”

How to fix ERROR_EVT_FILTER_UNSUPPORTEDOP

  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_EVT_FILTER_PARSEERRERROR_EVT_FILTER_UNEXPECTEDTOKENERROR_EVT_FILTER_INVTYPEERROR_EVT_FILTER_INVTESTERROR_EVT_INVALID_OPERATION_OVER_ENABLED_DIRECT_CHANNELERROR_EVT_INVALID_CHANNEL_PROPERTY_VALUEERROR_EVT_FILTER_INVARG

Source: Microsoft WinError.h

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