: Unofficial "free" installers often contain malware or corrupted files that can break game saves.

: Players who logged in during this period found the expansion files automatically downloaded and activated in their launcher.

In September 2013, a significant Steam error accidentally unlocked the Dawnguard DLC for many users who only owned the base game.

: While Bethesda eventually marked these copies as "not owned," the files often remained on users' hard drives, allowing them to keep playing unless they uninstalled or reinstalled the game. Legitimate "Free" Inclusion (Bundles)