RPC_S_INTERNAL_ERROR 0x800706E6

Error code 1766 · HRESULT 0x800706E6

WINDOWS

An internal error occurred in a remote procedure call (RPC).

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_INTERNAL_ERROR is a Windows error code (system error 1766, returned as HRESULT 0x800706E6) reported by Windows. Its official message is: “An internal error occurred in a remote procedure call (RPC).”

How to fix RPC_S_INTERNAL_ERROR

  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_NO_CONTEXT_AVAILABLERPC_S_ZERO_DIVIDERPC_S_CANNOT_SUPPORTERROR_PATH_NOT_FOUNDERROR_ACCESS_DENIEDERROR_NOT_ENOUGH_MEMORYERROR_INVALID_DATAERROR_WRITE_PROTECT

Source: Microsoft WinError.h

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