Standaloneupdaterdaemon -

More advanced users can find the configuration files for these daemons in /Library/LaunchAgents or ~/Library/LaunchAgents to disable them manually.

– Upon detecting an update, the daemon downloads the package in chunks (using delta patching if supported). To minimize disruption, it waits for the system to be idle (low CPU usage, no active full-screen applications). Finally, it applies the update, which may require restarting the associated application or, in rare cases, the entire system. standaloneupdaterdaemon

A standalone daemon solves these by operating at the OS service level with idempotent, resumable update transactions. More advanced users can find the configuration files

: Killing the process might interrupt a critical security update. Instead, let it finish its task. Check for Pending Updates System Settings > General > Software Update no active full-screen applications). Finally