ERROR_CLUSTER_CANT_CREATE_DUP_CLUSTER_NAME 0x8007170C

Error code 5900 · HRESULT 0x8007170C

WINDOWS

A cluster cannot be created with the specified cluster name because that cluster name is already in use. Specify a different name for the cluster.

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_CANT_CREATE_DUP_CLUSTER_NAME is a Windows error code (system error 5900, returned as HRESULT 0x8007170C) reported by Windows. Its official message is: “A cluster cannot be created with the specified cluster name because that cluster name is already in use. Specify a different name for the cluster.”

How to fix ERROR_CLUSTER_CANT_CREATE_DUP_CLUSTER_NAME

  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_CANT_DESERIALIZE_DATAERROR_CLUSTER_WRONG_OS_VERSIONERROR_CLUSTER_PARAMETER_MISMATCHERROR_CLUSTER_EVICT_WITHOUT_CLEANUPERROR_CLUSCFG_ALREADY_COMMITTEDERROR_NODE_CANNOT_BE_CLUSTEREDERROR_CLUSCFG_ROLLBACK_FAILED

Source: Microsoft WinError.h

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