ERROR_DS_CROSS_REF_EXISTS 0x800720B6

Error code 8374 · HRESULT 0x800720B6

WINDOWS

A cross reference 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_CROSS_REF_EXISTS is a Windows error code (system error 8374, returned as HRESULT 0x800720B6) reported by Windows. Its official message is: “A cross reference already exists.”

How to fix ERROR_DS_CROSS_REF_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_CROSS_REF_BUSYERROR_DS_CROSS_NC_DN_RENAMEERROR_DS_CROSS_DOMAIN_CLEANUP_REQDERROR_DS_CROSS_DOM_MOVE_ERRORERROR_DS_NAME_REFERENCE_INVALIDERROR_DS_CANT_DEL_MASTER_CROSSREFERROR_DS_OBJ_CLASS_NOT_SUBCLASS

Source: Microsoft WinError.h

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