ERROR_RESMON_ONLINE_FAILED 0x8007139A

Error code 5018 · HRESULT 0x8007139A

WINDOWS

The cluster resource could not be brought online by the resource monitor.

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_RESMON_ONLINE_FAILED is a Windows error code (system error 5018, returned as HRESULT 0x8007139A) reported by Windows. Its official message is: “The cluster resource could not be brought online by the resource monitor.”

How to fix ERROR_RESMON_ONLINE_FAILED

  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_RESMON_CREATE_FAILEDERROR_RESMON_INVALID_STATEERROR_RESMON_SYSTEM_RESOURCES_LACKINGERROR_RESOURCE_ONLINEERROR_HOST_NODE_NOT_GROUP_OWNERERROR_QUORUM_RESOURCE

Source: Microsoft WinError.h

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