ERROR_REGISTRY_IO_FAILED 0x800703F8

Error code 1016 · HRESULT 0x800703F8

WINDOWS

An I/O operation initiated by the registry failed unrecoverably. The registry could not read in, or write out, or flush, one of the files that contain the system's image of the registry.

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_REGISTRY_IO_FAILED is a Windows error code (system error 1016, returned as HRESULT 0x800703F8) reported by Windows. Its official message is: “An I/O operation initiated by the registry failed unrecoverably. The registry could not read in, or write out, or flush, one of the files that contain the system's image of the registry.”

How to fix ERROR_REGISTRY_IO_FAILED

  1. Verify the path/file actually exists and is not blocked by antivirus quarantine
  2. Reinstall the application that raised the error to restore missing files
  3. Check the full path spelling (long paths >260 chars need a registry opt-in)

Related errors

ERROR_REGISTRY_CORRUPTERROR_REGISTRY_RECOVEREDERROR_REGISTRY_HIVE_RECOVEREDERROR_REGISTRY_QUOTA_LIMITERROR_NOT_REGISTRY_FILEERROR_KEY_DELETEDERROR_CANTWRITE

Source: Microsoft WinError.h

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