Disable Cisco Webex Meetings auto-start
The hits from Cisco on this did not work; the interface must have changed--can't find any preferences as they indicate.
The following link worked for me on MacOS:
https://macpaw.com/how-to/remove-startup-items-in-osx
Go to apple menu -> System Preferences then Users & Groups, pick your user then go to the Login Items tab, highlight the app and remove with the - button
The following link should work on Windows 10:
https://www.tenforums.com/tutorials/2944-add-delete-enable-disable-startup-items-windows-10-a.html
right-click in the taskbar, select "Task Manager", select the "Startup" tab; look for your application and click on "Enable" to disable it.
There may be other options available (see the linked web page).