ERROR_DS_OBJ_GUID_EXISTS 0x800720A9

Error code 8361 · HRESULT 0x800720A9

WINDOWS

A local object with this GUID (dead or alive) already exists.

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_DS_OBJ_GUID_EXISTS is a Windows error code (system error 8361, returned as HRESULT 0x800720A9) reported by Windows. Its official message is: “A local object with this GUID (dead or alive) already exists.”

How to fix ERROR_DS_OBJ_GUID_EXISTS

  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_DS_OBJ_CLASS_NOT_DEFINEDERROR_DS_OBJ_CLASS_NOT_SUBCLASSERROR_DS_OBJ_NOT_FOUNDERROR_DS_OBJ_TOO_LARGEERROR_DS_INVALID_DMDERROR_DS_NOT_ON_BACKLINKERROR_DS_CLASS_MUST_BE_CONCRETE

Source: Microsoft WinError.h

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