Live update fails to install updates with the following error: "Error LU1823. LiveUpdate is already running". Process "Luall.exe" is not seen in the task manager.
LU1823: LiveUpdate is already running. LiveUpdate can only be run later.
This can occur when Live Update is running in silent mode or at the session of another user, or if LiveUpdate has terminated recently.
1. Run the following tool to end Live Update running in background:
2. Run Live Update again.