ERROR_SXS_PROCESS_DEFAULT_ALREADY_SET 0x800736BB

Error code 14011 · HRESULT 0x800736BB

WINDOWS

An attempt to set the process default activation context failed because the process default activation context was already set.

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_SXS_PROCESS_DEFAULT_ALREADY_SET is a Windows error code (system error 14011, returned as HRESULT 0x800736BB) reported by Windows. Its official message is: “An attempt to set the process default activation context failed because the process default activation context was already set.”

How to fix ERROR_SXS_PROCESS_DEFAULT_ALREADY_SET

  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_SXS_PROCESS_TERMINATION_REQUESTEDERROR_SXS_CANT_GEN_ACTCTXERROR_SXS_COMPONENT_STORE_CORRUPTERROR_SXS_THREAD_QUERIES_DISABLEDERROR_SXS_UNKNOWN_ENCODING_GROUPERROR_SXS_WRONG_SECTION_TYPEERROR_SXS_UNKNOWN_ENCODING

Source: Microsoft WinError.h

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