Identify what still depends on it
Word, Excel, PowerPoint, Outlook, OneDrive, and other Microsoft software can rely on Microsoft AutoUpdate. Removing it while keeping those apps means you must take responsibility for checking and installing updates another way.
Use the background toggle for the immediate problem
On Ventura and later, open System Settings, then General, then Login Items & Extensions. In Allow in the Background, turn Microsoft AutoUpdate off if you want to stop its background activity. This is safer than treating every updater file as disposable.
Know what a missing AutoUpdate entry means
Microsoft says a missing AutoUpdate entry can mean that the updater is missing or damaged, and its guidance for users who need Office updates is to reinstall the current updater. That is a signal that it is an active Office component, not proof of a harmless orphan.
Uninstall Office products deliberately
If your goal is a full Microsoft cleanup, remove the Office or OneDrive products you no longer use using Microsoft's current Mac removal guidance. Keep shared documents, Outlook data, and OneDrive content separate from app cleanup.
Verify after restarting
Restart and confirm that the background prompt no longer returns. CleanWarden can show clearly named Microsoft support files for review, but it should not select shared Microsoft data or update infrastructure automatically.
Frequently Asked Questions
Can I stop Microsoft AutoUpdate without deleting Office?Yes. macOS can disable its Allow in the Background permission, but Office apps may then ask you to re-enable or reinstall it for updates.
Does turning it off remove Microsoft Office?No. It only changes the updater's background permission.
Should I delete Microsoft AutoUpdate if I still use Word or OneDrive?Usually no. Disable it temporarily only if that suits your update workflow; otherwise keep the supported updater installed.