Archiving options in Outlook 2007 have vanished on just about every computer I have checked on my domain. We are using Outlook 2007 on Windows XP OS with Exhange 2010 SP1. We have no GPO's that would disable archiving. The options for archiving (auto or manual) have simply disapeared. Is there something in Exchange 2010 that would cause this? I have already tried everything to do with KB2412171. When I try deleting the Outlook profile and recreating it, the archiving options do come back, but only for a few minutes.