RPC_X_SS_HANDLES_MISMATCH 0x800706F2

Error code 1778 · HRESULT 0x800706F2

WINDOWS

The binding handles passed to a remote procedure call do not match.

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_X_SS_HANDLES_MISMATCH is a Windows error code (system error 1778, returned as HRESULT 0x800706F2) reported by Windows. Its official message is: “The binding handles passed to a remote procedure call do not match.”

How to fix RPC_X_SS_HANDLES_MISMATCH

  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_X_SS_CANNOT_GET_CALL_HANDLERPC_X_SS_CONTEXT_DAMAGEDRPC_X_SS_IN_NULL_CONTEXTRPC_X_SS_CHAR_TRANS_SHORT_FILERPC_X_NULL_REF_POINTERRPC_X_ENUM_VALUE_OUT_OF_RANGERPC_X_BYTE_COUNT_TOO_SMALL

Source: Microsoft WinError.h

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