Updating address book in outlook 2016 d3 beta stuck at updating tools
Even tried restarting the Exchange Mailbox Assistant service without any luck.Next we renamed the folder containing the OAB files (the folder with a name that looks like a GUID).
Or force Outlook to download the latest version of the offline address book.*Note: Disabling cached mode is not really a fix!
Exchange 2013 has gone through an evolution in the way the Offline Address Book is generated and maintained.
Exchange 2013 only supports Outlook 2007 (post SP3 and cumulative update), and Outlook 2010 must be at SP1 with cumulative update. For public folder distribution ensure the public folder database is mounted, and at least one server holds a replica.
Also in the properties of the mailbox database, your users are using, make sure it points to the correct public folder database.
So, first, check to see where the mailbox is: Which gives us this result: Then we can check and the database is mounted: Next we can try to update the files for the OAB.