RPC_S_SEND_INCOMPLETE 0x80070779

Error code 1913 · HRESULT 0x80070779

WINDOWS

Some data remains to be sent in the request buffer.

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_SEND_INCOMPLETE is a Windows error code (system error 1913, returned as HRESULT 0x80070779) reported by Windows. Its official message is: “Some data remains to be sent in the request buffer.”

How to fix RPC_S_SEND_INCOMPLETE

  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

OR_INVALID_SETRPC_S_INVALID_ASYNC_HANDLEOR_INVALID_OIDERROR_INSTALL_FAILEDERROR_PACKAGE_REPOSITORY_CORRUPTEDERROR_INSTALL_FIREWALL_SERVICE_NOT_RUNNINGE_UNEXPECTEDE_FAIL

Source: Microsoft WinError.h

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