Article ID: 2770480 - View products that this article applies to.
Expand all | Collapse all

Symptoms

If Microsoft Outlook 2013 is not running when you double-click an .msg file, an earlier version of Outlook opens.

Cause

This problem can occur if you have Outlook 2013 (as part of a Click-to-Run installation of Office 2013) installed on the same computer as an earlier version of Outlook. If you perform a software update on or repair your earlier version Office, the file associations on your computer may be reset to that particular version of Office. For example, the following registry data shows the .msg file name extension is associated with Outlook 2010.

Key: HKEY_CLASSES_ROOT\.msg
String: (Default)
Value: Outlook.File.msg.14

Resolution

To resolve this problem, follow these steps to reset your file associations:
  1. Exit any currently running versions of Outlook.
    • Windows 8
      1. Right-click any file that has an .msg file name extension, point to Open With, and then click Choose default program.
      2. In the How do you want to open this file? dialog box, select Use this app for all .msg files.
        (The screenshot for step 2 and 3 is listed below).
      3. Then, select Outlook (desktop). See the following figure to help you identify the correct entry.

        Collapse this imageExpand this image
        The screen shot for step 2 and 3

    • Windows 7
      1. Right-click any file with an .msg file name extension, point to Open with and then click Choose default program.
      2. In the Open with dialog box, select Always use the selected program to open this kind of file.
        (The screen shot for step 2 and 3 is listed below).
      3. Then, select Outlook (desktop) and then click OK.

        See the following figure to help you identify the correct entry to select.

        Collapse this imageExpand this image
        The screen shot for step 2 and 3

More information

For more information about Click-to-Run installations of Office 2013, please visit the following Microsoft web site:
Learn more about Click-to-Run

Most people that install Office 2013 will install Office by using Click-to-Run. Because Office 2013 Click-to-Run does not uninstall any previous Office versions, anyone who uses Office 2013 programs will be using them in a coexistence configuration. If you do not need the earlier version of Office installed on your computer and you are only using Office 2013 programs, you should consider uninstalling the earlier Office version.

Follow these steps to uninstall an earlier version of Office:
  1. Exit any currently running Office programs.
  2. Start Control Panel.
  3. Click Uninstall a program.
  4. Select the earlier version of Office entry in the list of installed programs, and then click Uninstall.
  5. When you are prompted to confirm you want to remove the earlier Office version, click Yes.

Properties

Article ID: 2770480 - Last Review: September 3, 2013 - Revision: 5.0
Applies to
  • Microsoft Outlook 2013
  • Microsoft Outlook 2010
  • Microsoft Office Outlook 2007
Keywords: 
KB2770480

Give Feedback

 

Contact us for more help

Contact us for more help
Connect with Answer Desk for expert help.
Get more support from smallbusiness.support.microsoft.com