Microsoft Patch Tuesday Updates Supposed to Fix 14 Flaws, Causes Headaches Instead
According to InfoWorld, at least five updates are causing issues. These include KB 2817630, KB 2810009, KB 2760411, KB 2760588, and KB 2760583. The first of those is not a security patch, but one that's intended to bring more functionality to Office 2013. However, some users are complaining that after installing KB 2817630 (possibly in conjunction with KB 2810009), the folder pane in Outlook 2013 disappears.
This is how some users are feeling after applying Microsoft's Patch Tuesday updates. Source: Flickr (Mr.Thomas)
The solution? You can try uninstalling both patches to bring back the folder pane, or follow the advice of one of the users on the TechNet forum:
"This behavior seems to be caused by using the latest version of the shared Office library mso.dll 15.0.4535.1002 from KB2817630 in combination with an outdated version of Outlook," the user explains. "Try installing KB2817503 to update Outlook to the matching version 15.0.4535.1004. I don't have the issue with the missing folder pane in this constellation. Updating Outlook with the August 2013 hotfix (KB2817503) restored the reading pane on multiple machines."
Another weird issue users are running into is that KB 2760411, KB 2760588, and KB 2760583 appear to install correctly, but keep getting re-offered in Windows Update.