February 10, 2015 update for Project 2010 (KB2589387)

Applies to: Project Professional 2010Project Standard 2010

This article describes update KB2589387 for Microsoft Project 2010 that was released on February 10, 2015. This update has a prerequisite.

Improvements and Fixes

Fixes the following issue:
When you update the same project by using Project 2010 or a Project Server Interface (PSI) application, the task’s critical path may differ. For example, a task that is marked as critical by Project 2010 may not be marked as critical when updated by using a PSI application.

How to download and install the update

Windows Update

Use Windows 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.

Update information

Restart information

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


To apply this update, you must have Microsoft Project 2010 Service Pack 2 installed.

More Information


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.