This issue has been corrected with an update described in the link above, and has been delivered as an automatic update via Microsoft Update. If you are still experiencing this issue, please re-run Microsoft Update, check for updates, and ensure you are on the latest versions of each package.
Shortly after publishing the September Public Update, we received notifications of a potential issue with Outlook 2013 after installing the non-security update KB2817630. Based on those reports we immediately removed the patch from Microsoft Update - within 3 hours of its release. If you haven’t already downloaded or installed the patch, you will not have these problems or be offered the problematic patch.
In contrast to what has been reported, MS13-068 is not the cause nor is it affected by this issue.
This blog post will describe the problem and explain how to fix it. It also reminds users what to do if a Patch Tuesday update causes issues.
We are very careful with Public Updates given their wide and rapid proliferation. We regret any inconvenience caused by this update, and we are hopeful that this information can help you restore productivity in Outlook products.
Due to a version incompatibility between outlook.exe and mso.dll, a mismatched reference to a data structure causes the “Minimize” button in the navigationpane to render incorrectly, typically extremely large to the point that the navigation pane is "invisible" to the user. The issue only manifests when incompatible versions of outlook.exe and mso.dll exist on the system.
If both versions are earlier (lower) than 4535.1000, or both versions are later (higher) than 4535.1000, the problem does not manifest. If one file is updated but the other is not, the problem is evident. The incompatible state is created by installing either the September Public Update OR the August Cumulative update, but not both. Users of MSI-based products that have automatic updates enabled are those that are most likely to have encountered the issue.
Office 2013 Click-to-Run products are not affected.
Said differently, only MSI installations of Office or Outlook 2013 are affected. These are volume-license installations typically found in businesses thatpurchase licenses in volume.
Each version of Office installed, such as viewers, standalone client products, Office suites with MSI-based installations, etc., will receive the update. We haveseen reports of some users needing to remove the update 2 or 3 times. This is because the system has product ID’s for multiple installations of MSI-basedOffice products.
Two updates can get a user into this state. Installing the September Public Update delivers an updated version of mso.dll without updating outlook.exe, resulting in the incorrect user interface.
We are also working on re-publishing the September Public Update with the correct versions of both mso.dll and outlook.exe to ensure users with automatic updates enabled will receive the correct fix. We will update this blog with further information as our schedule develops.
When you encounter trouble with a Public Update, you can always contact us at http://support.microsoft.com. You can call Microsoft directly at 1-866-234-6020. Alternatively, please contact our community network at Microsoft Community or visit Microsoft Support for access to extensive online self-help resources.
I have uninstall KB2817630, after that my files MSO.DLL - 4535, OUTLOOK.EXE - 4517. Problem sill persist.
I have removed KB2817630, KB2817347 and still have a blank pane. What's next to do? Office Professional Plus.
And so, 5 days later, is there an update on this? Manually removing this update from 1000+ machines isn't fun after we deployed using SCCM. Installing was easy, but it appears no VBS script or otherwise will uninstall KB2817630 in some automated fashion. We could, however, deploy a patch easily. Is there any update?
Is there a fix yet for 2013 32 bit? It's been over 5 days now.... not a happy camper....
Thanks a lot, it worked nicely.
Hi, as per the suggested fix, I have uninstalled KB2817630 and KB2817347 does not exist. Yet the folder pane is not back to behaving normally. Any other fix I can try? Thanks.
Can we get an update please.... when can we expect a fix?
Removing the update KB2817630 helped me to solve the issue. My notebook is 64 bit. There were two KB2817630 (32 bit) updates. I removed them both, then it worked correctly.
Thank you for the info! Fixed my issue perfectly. I did uninstall the September Outlook Update KB2817630 and rolled back to the August Outlook update KB2817629. Then after installing the Outlook cumulative hotfix update KB2817347, everything started working correctly. Appreciate the info and fix.
I have a customer with Office 2013 Home and business (C2R version)with the same issue - after installing Office updates the folder pane is gone. However I cannot uninstall the update, since it was not installed via Windows Update. Any ideas?
When will there be a patch so the Problem is solved?
MS-Office phone support referred me to this page. However, I think page refers a different bug than mine.
After installing September Office update, my folders list continued to appear properly, however no messages from my IMAP folders are displayed (Local PST folder messages are displayed)
After removing the September update, the problem disappeared.
But, I want to track the issue, to know when I can start installing Office Updates again.
Is my problem a different one than the problem reported on this page?
Yes where is the patch? Can't expect me to do this on 50 machines...