A new patch has been released to fix an issue which prevented digital download users from properly updating their game. By automatically installing this new patch through The Sims 3 launcher, you’ll no longer need to use the manual solutions below. If you have already downloaded the manual patches and remedied the issue, you can still install the new patch via your launcher to update your game to the latest version.
Custom content and unsupported mods may also be preventing the game from patching. Uninstall and delete all third-party mods and unsupported content. After deleting all third-party content, you must manually uninstall The Sims 3 to completely get rid of the extra content.