Are there specific scenarios where Error 286 is more likely to appear, such as during upgrades or uninstalls?

Error 286 is most commonly observed during the initial installation of a software package. However, it can also appear during upgrades (if the upgrade package has similar issues to a new install) or uninstalls, particularly if the uninstallation process involves custom actions that fail (e.g., trying to delete a locked file, or a custom uninstallation script encountering an error). The underlying cause remains a package or custom action issue.