ERROR_OBJECT_NOT_EXTERNALLY_BACKED 0x80070156

Error code 342 · HRESULT 0x80070156

WINDOWS

This object is not externally backed by any provider.

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_OBJECT_NOT_EXTERNALLY_BACKED is a Windows error code (system error 342, returned as HRESULT 0x80070156) reported by Windows. Its official message is: “This object is not externally backed by any provider.”

How to fix ERROR_OBJECT_NOT_EXTERNALLY_BACKED

  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_OBJECT_NOT_FOUNDERROR_OBJECT_NAME_EXISTSERROR_OBJECT_ALREADY_EXISTSERROR_OBJECT_IN_LISTERROR_INVALID_PEP_INFO_VERSIONERROR_EXTERNAL_BACKING_PROVIDER_UNKNOWNERROR_INVALID_KERNEL_INFO_VERSION

Source: Microsoft WinError.h

Last updated: