On Tuesday, December 14, we released an update (KB2412171) for Microsoft Outlook 2007. We have discovered several issues with the update and want to inform you about problems you might encounter and what corrective steps we recommend. As of December 16, this Outlook 2007 update has been removed from Microsoft Update.
This Outlook 2007 update was distributed via Microsoft Update. Many of you receive updates automatically and if you installed the update between Tuesday, December 14, and Thursday, December 16, it is likely that you are affected.
Please read the Microsoft Outlook Product Team's blog post for the details on the issues identified and the corrective steps to take.