ERROR_CLUSTER_NULL_DATA 0x80071720

Error code 5920 · HRESULT 0x80071720

WINDOWS

An internal cluster error occurred. Data was not properly initialized.

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_CLUSTER_NULL_DATA is a Windows error code (system error 5920, returned as HRESULT 0x80071720) reported by Windows. Its official message is: “An internal cluster error occurred. Data was not properly initialized.”

How to fix ERROR_CLUSTER_NULL_DATA

  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_CLUSTER_DATABASE_TRANSACTION_NOT_IN_PROGRESSERROR_CLUSTER_PARTIAL_READERROR_CLUSTER_DATABASE_TRANSACTION_IN_PROGRESSERROR_CLUSTER_PARTIAL_WRITEERROR_CLUSTER_INVALID_STRING_FORMATERROR_CLUSTER_CANT_DESERIALIZE_DATAERROR_CLUSTER_INVALID_STRING_TERMINATION

Source: Microsoft WinError.h

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