October 13, 2015, update for Office 2013 (KB3085566)

Applies to: Microsoft Office 2013 Service Pack 1Office Home and Student 2013 RT

After you install this update, you may experience a problem when you synchronize files in Microsoft OneDrive for Business. If this situation applies to you, install update 2986219 to resolve this problem.


This article describes update 3085566 for Microsoft Office 2013 that was released on October 13, 2015. This update also applies to Office Home and Student 2013 RT. This update has a prerequisite.

Be aware that the update in Download Center applies to Microsoft Installer (.msi)-based edition of Office 2013. It doesn't apply to the Office 2013 Click-to-Run editions such as Microsoft Office 365 Home. (How to determine?)

Improvements and fixes

  • Translates some terms in multiple languages to make sure that the meaning is accurate.
  • Changes interfaces from Apps to Add-Ins and from Add-Ins to COM Add-Ins in Outlook 2013.
  • Enables a new SharePoint Online feature that lets SharePoint Online administrators revoke sessions of a user in their tenant, and the only way for the user to reopen and save files to SharePoint Online is to sign in again.
  • Fixes the following issues:

    • When you exit Office 2013 applications, Office 2013 applications may crash.
    • When you save an image that contains transparency in a document in an Office 2013 application, the image is corrupted and is displayed as a black box.
    • In Office 2013 applications, accounts that are signed in don't work as expected for roaming users.
    • Microsoft Office Upload Center crashes intermittently.
    • When you open Outlook 2013 that has an Exchange account set on a computer that's joined to a domain, you receive repeatedly prompt for credentials. This issue occurs if the domain of the Exchange account is different with the computer domain.
    • When you try to save a workbook that has an unregistered ActiveX control in Excel 2013, Excel 2013 may crash.
    • Third-party MAPI applications can't authenticate when modern authentication is enabled on the applications. After you apply this update, modern authentication is disabled for third-party applications but enabled for Microsoft Office 2013 applications, third-party applications can still authenticate by using other authentication protocols.
    • In some cases, the license state or enabled features of Office 2013 applications may be incorrect if Office 2013 and Office 2016 are both installed on the computer.
    • When you try to start an Office 2013 application in Windows 7 compatibility mode on a Windows 8 or a later version of Windows-based computer, you receive a message that looks something like:
      A repair from control panel is needed.
    • In PowerPoint 2013, the Start screen and File New screen don't show all online themes that are available. After you install this update, online themes that are missing from the Start screen and File New screen will be detected and downloaded automatically. It may take one day for the missing themes to appear again.

How to download and install the update

Microsoft Update

Use Microsoft Update to automatically download and install the update.

Download Center

This update is no longer available from the Microsoft Download Center. To download a new version of this update, go to the following Knowledge Base article:

Update information

Restart information

You may have to restart the computer after you install this update.


To apply this update, you must have Microsoft Office 2013 Service Pack 1 installed.

More Information

To determine whether your Office installation is Click-to-Run or MSI-based, follow these steps:
  1. Open an Office 2013 application, such as Microsoft Word 2013.
  2. On the File menu, select Account.
  3. For Office 2013 Click-to-Run installations, an Update Options item is displayed. For MSI-based installations, the Update Options item isn't displayed.
Office 2013 Click-to-Run installationMSI-based Office 2013
The screenshot for Word Click To Run The screenshot for Word MSI


See the information about the standard terminology that is used to describe Microsoft software updates . The Office System TechCenter contains the latest administrative updates and strategic deployment resources for all versions of Office.