ERROR_INSTRUCTION_MISALIGNMENT 0x80070225

Error code 549 · HRESULT 0x80070225

WINDOWS

An attempt was made to execute an instruction at an unaligned address and the host system does not support unaligned instruction references.

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_INSTRUCTION_MISALIGNMENT is a Windows error code (system error 549, returned as HRESULT 0x80070225) reported by Windows. Its official message is: “An attempt was made to execute an instruction at an unaligned address and the host system does not support unaligned instruction references.”

How to fix ERROR_INSTRUCTION_MISALIGNMENT

  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_DEVICE_ALREADY_ATTACHEDERROR_PROFILING_NOT_STARTEDERROR_INVALID_QUOTA_LOWERERROR_BAD_EXE_FORMATERROR_FILENAME_EXCED_RANGEERROR_ELEVATION_REQUIREDERROR_UNRECOGNIZED_VOLUMEERROR_SERVICE_REQUEST_TIMEOUT

Source: Microsoft WinError.h

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