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Description of the Office 2010 update: February 12, 2013

Microsoft has released an update for Microsoft Office 2010. This update provides the latest fixes for the 32-bit and 64-bit editions of Office 2010.

Issue that this update fixes

Consider the following scenario: 
  • You install Microsoft Office 2010 and then Office 2013. 
  • You use Office 2013 as the default program for Office files. 
  • You install an update for Office 2010 from Windows Update.
  • You double-click an Office file.
In this scenario, the file is opened in Office 2010 instead of Office 2013.


This issue occurs because the update for Office 2010 sets Office 2010 as the default program for Office files. Therefore, all Office files are associated with Office 2010.

This problem has been addressed in Office 2010 Service Pack 2. For more information, click the following article number to view the article in the Microsoft Knowledge Base:  
2687455 Description of Office 2010 Service Pack 2

Update details

This update does not replace a previously released update.

How to obtain and install the update

The following files are available for download from the Microsoft Download Center:


DownloadDownload the update package now.


DownloadDownload the update package now.

For more information about how to download Microsoft support files, click the following article number to view the article in the Microsoft Knowledge Base:
119591 How to obtain Microsoft support files from online services
Microsoft scanned this file for viruses. Microsoft used the most current virus-detection software that was available on the date that the file was posted. The file is stored on security-enhanced servers that help prevent any unauthorized changes to the file.

Restart information

You do not have to restart the computer after you install this update.

How to determine whether the update is installed

This update contains the files that are listed in the following tables.

File nameFile versionFile sizeDateTime
File nameFile versionFile sizeDateTime

How to uninstall this update

  1. Click Start, and then click Run.
  2. Type Appwiz.cpl, and then click OK.
  3. Use one of the following procedures, depending on the operating system that you are running.
    • Windows 7 and Windows Vista
      1. Click View installed updates.
      2. In the list of updates, locate and click update 2553378, and then click Uninstall.
    • Windows XP
      1. Click to select the Show updates check box.
      2. In the list of updates, locate and click update 2553378, and then click Remove.

The Office System TechCenter contains the latest administrative updates and strategic deployment resources for all versions of Office. For more information about the Office System TechCenter, go to the following Microsoft website:

Article ID: 2553378 - Last Review: 02/07/2014 07:55:00 - Revision: 2.0

  • Microsoft Office Home and Student 2010
  • Microsoft Office Professional 2010
  • Microsoft Office Professional Plus 2010
  • Microsoft Office Standard 2010
  • Microsoft Office Starter 2010
  • Microsoft Office Home and Business 2010
  • atdownload kbsurveynew kbexpertisebeginner KB2553378