STATUS_SMB_BAD_CLUSTER_DIALECT 0xC05D0001

Hex 0xC05D0001 · Decimal -1067646975 · Type NTSTATUS

WINDOWS

The current cluster functional level does not support this SMB dialect.

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

STATUS_SMB_BAD_CLUSTER_DIALECT is a Windows error code (NTSTATUS 0xC05D0001) reported by Windows. Its official message is: “The current cluster functional level does not support this SMB dialect.”

How to fix STATUS_SMB_BAD_CLUSTER_DIALECT

  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

STATUS_SMB_GUEST_LOGON_BLOCKEDSTATUS_SMB_NO_PREAUTH_INTEGRITY_HASH_OVERLAPERROR_SMB_BAD_CLUSTER_DIALECTERROR_SMB_NO_PREAUTH_INTEGRITY_HASH_OVERLAPERROR_BAD_NETPATHERROR_BAD_NET_NAMEERROR_INVALID_PARAMETERERROR_DISK_FULL

Source: Microsoft ntstatus.h

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