To get rid of Microsoft AutoUpdate on Mac, remove these files and folders:

In the System Library (you need "sudo"):

Folder: /Library/Application Support/Microsoft/MAU2.0

File: /Library/LaunchDaemons/com.microsoft.autoupdate.helper.plist

File: /Library/LaunchAgents/com.microsoft.update.agent.plist

File: /Library/PrivilegedHelperTools/com.microsoft.autoupdate.helper

In your user's Library (needs to be done for each user):

File: ~/Library/Preferences/com.microsoft.autoupdate2.plist

File: ~/Library/Preferences/com.microsoft.autoupdate.fba.plist

Folder: ~/Library/Application Support/Microsoft AU Daemon

Folder: ~/Library/Application Support/Microsoft Update Assistant

File: ~/L  ...