[Vadikan]

Blast

Судя по всему политиками и вообще средствами системы этого не сделать

Не совсем так

USER Administrative Templates\Windows Components\Internet Explorer\Browser menus Hide Favorites menu at least Internet Explorer v5.0 Prevents users from adding, removing, or editing the list of Favorite links. The Favorites list is a way to store popular links for future use. If you enable this policy, the Favorites menu is removed from the interface, and the Favorites button on the browser toolbar appears dimmed. The Add to Favorites command on the shortcut menu is disabled; when users click it, they are informed that the command is unavailable. If you disable this policy or do not configure it, users can manage their Favorites list. This policy is intended to ensure that users maintain consistent lists of favorites across your organization. Note: If you enable this policy, users also cannot click Synchronize on the Tools menu to manage their favorite links that are set up for offline viewing. Код: HKCU\Software\Policies\Microsoft\Internet Explorer\Infodelivery\Restrictions!NoFavorites

Источник Group Policy Settings Reference