How to disable the "Check for Updates..." menu item - archimatetool/archi GitHub Wiki
You may wish to disable the "Check for Updates..." menu item.
This can be achieved by editing the user's Archi prefs file.
[user home directory]/Archi4/.metadata/.plugins/org.eclipse.core.runtime/.settings/com.archimatetool.editor.prefs
Ensure Archi is not running and edit this file by adding this line:
updateURL=
Restart Archi.