The process is part of Microsoft’s infrastructure to keep software like OneDrive and Microsoft 365 (Office) up to date. You may encounter it in two main ways:
To stop the daemon from running at startup without deleting it: Unknown app called standaloneupdater on activity monitor standaloneupdaterdaemon
is a legitimate background process on macOS specifically associated with Microsoft OneDrive . It functions as a "daemon"—a faceless task that runs continuously to handle updates for Microsoft applications without requiring manual user intervention. What is StandaloneUpdaterDaemon? The process is part of Microsoft’s infrastructure to
Listed as a running process under "All Processes". standaloneupdaterdaemon