December 5, 2017, update for Project 2016 (KB4011573)

Applies to: Project Professional 2016Project Standard 2016

This article describes update 4011573 for Microsoft Project 2016 that was released on December 5, 2017. This update has a prerequisite.

Be aware that the update in the Microsoft Download Center applies to the 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

This update fixes the following issues:

  • In the Chinese version, Project 2016 crashes when you open the Change Work Time dialog and scroll the calendar to date between 1995 and 2011.
  • When system events such as Group Policy updates are applied, Project 2016 may flicker.
  • When visual reports are generated from the context of a master project, the results are inconsistent and may fail completely in certain cases. For example, if you select the Earned Value Over Time Report chart, you may find that not all the costs from the sub projects are included in the pivot chart, and you may receive the following error message when you create a visual report:

    An unknown error has occurred. An error occurred and the requested action could not be completed at this time.

  • Consider the following scenario:
    • You open a project from Project Server.
    • You save the project by using the Save for Sharing functionality.
    • You delete data from the project. For example, you delete an assignment on a task.
    • You save the project back to the server.

    In this situation, you may find that there is still data for the deleted element in reporting database. For instance, you still see actual work in the project.

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 which platform (32-bit or 64-bit) you're running, see Am I running 32-bit or 64-bit Office? Additionally, see more information about how to download Microsoft support files.

Update information


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

Restart information

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

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 installation MSI-based Office 2016
The screenshot for Word click to run The screenshot for Word MSI

How to uninstall this update

Windows 10

  1. Go to Start, enter View Installed Updates in the Search Windows box, and then press Enter.
  2. In the list of updates, locate and select KB4011573, and then select Uninstall.

Windows 8 and Windows 8.1

  1. Swipe in from the right edge of the screen, and then select Search. If you're using a mouse, point to the lower-right corner of the screen, and then select Search.
  2. Enter windows update, select Windows Update, and then select Installed Updates.
  3. In the list of updates, locate and select KB4011573, and then select Uninstall.

Windows 7

  1. Go to Start, enter Run, and then select Run.
  2. Enter Appwiz.cpl, and then select OK.
  3. Select View installed updates.
  4. In the list of updates, locate and select KB4011573, and then select Uninstall.


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 English (United States) version of this software update installs files that have the attributes that are listed in the following tables. The dates and the times for these files are listed in Coordinated Universal Time (UTC). The dates and the times for these files on your local computer are displayed in your local time together with your current daylight saving time (DST) bias. Additionally, the dates and the times may change when you perform certain operations on the files.