RPC_S_STRING_TOO_LONG 0x800706CF

Error code 1743 · HRESULT 0x800706CF

WINDOWS

The string is too long.

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

RPC_S_STRING_TOO_LONG is a Windows error code (system error 1743, returned as HRESULT 0x800706CF) reported by Windows. Its official message is: “The string is too long.”

How to fix RPC_S_STRING_TOO_LONG

  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

RPC_S_MAX_CALLS_TOO_SMALLRPC_S_PROTSEQ_NOT_FOUNDRPC_S_UNKNOWN_AUTHN_TYPEERROR_FILENAME_EXCED_RANGEERROR_ELEVATION_REQUIREDERROR_UNRECOGNIZED_VOLUMEERROR_SERVICE_REQUEST_TIMEOUTERROR_SERVICE_DISABLED

Source: Microsoft WinError.h

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