ERROR_PIPE_BUSY 0x800700E7

Error code 231 · HRESULT 0x800700E7

WINDOWS

All pipe instances are busy.

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

ERROR_PIPE_BUSY is a Windows error code (system error 231, returned as HRESULT 0x800700E7) reported by Windows. Its official message is: “All pipe instances are busy.”

How to fix ERROR_PIPE_BUSY

  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

ERROR_PIPE_LOCALERROR_PIPE_NOT_CONNECTEDERROR_PIPE_CONNECTEDERROR_PIPE_LISTENINGERROR_BAD_PIPEERROR_NO_DATAERROR_MORE_DATA

Source: Microsoft WinError.h

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