RPC_S_INVALID_STRING_UUID 0x800706A9

Error code 1705 · HRESULT 0x800706A9

WINDOWS

The string universal unique identifier (UUID) is invalid.

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_INVALID_STRING_UUID is a Windows error code (system error 1705, returned as HRESULT 0x800706A9) reported by Windows. Its official message is: “The string universal unique identifier (UUID) is invalid.”

How to fix RPC_S_INVALID_STRING_UUID

  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_INVALID_STRING_BINDINGRPC_S_INVALID_ENDPOINT_FORMATRPC_S_INVALID_RPC_PROTSEQRPC_S_INVALID_NET_ADDRRPC_S_PROTSEQ_NOT_SUPPORTEDRPC_S_INVALID_BINDINGRPC_S_NO_ENDPOINT_FOUND

Source: Microsoft WinError.h

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