ERROR_SXS_PROTECTION_PUBLIC_KEY_TOO_SHORT 0x800736FB

Error code 14075 · HRESULT 0x800736FB

WINDOWS

Assembly Protection Error : The public key for an assembly was too short to be allowed.

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_PROTECTION_PUBLIC_KEY_TOO_SHORT is a Windows error code (system error 14075, returned as HRESULT 0x800736FB) reported by Windows. Its official message is: “Assembly Protection Error : The public key for an assembly was too short to be allowed.”

How to fix ERROR_SXS_PROTECTION_PUBLIC_KEY_TOO_SHORT

  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_PROTECTION_CATALOG_NOT_VALIDERROR_SXS_PROTECTION_RECOVERY_FAILEDERROR_SXS_PROTECTION_CATALOG_FILE_MISSINGERROR_SXS_COMPONENT_STORE_CORRUPTERROR_SXS_XML_E_MISSINGEQUALSERROR_SXS_UNTRANSLATABLE_HRESULTERROR_SXS_XML_E_INVALID_VERSION

Source: Microsoft WinError.h

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