December 8, 2015, update for Outlook 2016 (KB3114387)

This article describes update KB3114387 for Microsoft Outlook 2016, which was released on December 8, 2015. This update has a prerequisite.

Be aware that the update in Download Center applies to Microsoft Installer (.msi)-based edition of Office 2016. It doesn't apply to the Office 2016 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 the wording is accurate.
    BUG #: 2602788 (OfficeMain)
  • Fixes the following issues:
    • When you use the MAPI over HTTP transport protocol in Outlook 2016, you may experience repeated reconnection attempts. This issue occurs because the X-PendingPeriod header field isn't respected.
      BUG #: 2535160 (OfficeMain)
    • After you move away from the contacts module in Outlook 2016, Outlook 2016 may crash if a screen reader is running.
      BUG #: 2654341 (OfficeMain)
    • After you run Outlook 2016 for several days, performance degrades because of GDI objects leaks.
      BUG #: 2654344 (OfficeMain)
    • Outlook 2016 crashes intermittently.
      BUG #: 2674079 (OfficeMain)

How to download and install the update

Microsoft Update

Use Microsoft Update to automatically download and install the update.

Download Center

This update is also available for manual download and installation from the Microsoft Download Center.If you're not sure what platform (32-bit or 64-bit) you're running, see Am I running 32-bit or 64-bit Office? Additionally, check out how to download Microsoft support files.

Virus-scan claim

Update information

Restart information

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


To apply this update, you must have Microsoft Outlook 2016 installed.

More Information

To determine whether your Office installation is Click-to-Run or MSI-based, follow these steps:
  1. Start an Office 2016 application.
  2. On the File menu, select Account.
  3. For Office 2016 Click-to-Run installations, an Update Options item is displayed. For MSI-based installations, the Update Options item isn't displayed.
Office 2016 Click-to-Run installationMSI-based Office 2016
The screenshot for Word click to run The screenshot for Word MSI
How to uninstall this update


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

File information

The global version of this update has the file attributes (or later file attributes) that are listed in the following table. The dates and times for these files are listed in Coordinated Universal Time (UTC). When you view the file information, it is converted to local time. To find the difference between UTC and local time, use the Time Zone tab in the Date and Time item in Control Panel.

รหัสบทความ: 3114387 - การตรวจสอบครั้งสุดท้าย: 8 ธ.ค. 2015 - ฉบับแก้ไข: 1