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Summary

If you are running Microsoft Security Essentials, version 1.0.1407.0, version 1.0.1500.0, version 1.0.1610.0, version 1.0.1961.0, or an earlier version, you might receive one of the following messages:

  • An action item that prompts you to upgrade to the latest version of the program through the Microsoft Security Essentials user interface.

  • An action item that prompts you to upgrade to the latest version of the program through a pop-up window.

  • An action item that prompts you to upgrade to the latest version of the program through a "toast" message.

  • An "Important" download notification on Microsoft Update for Microsoft Security Essentials Client update package - KB2254596 that offers an upgrade to the latest version of Microsoft Security Essentials.

  • A "High priority" download notification on Microsoft Update for Microsoft Security Essentials Client update package - KB2254596 that offers an upgrade to the latest version of Microsoft Security Essentials.


Important If you are running a beta version of Microsoft Security Essentials, we encourage you to upgrade to the latest version. By upgrading now, you help make sure that you have continuous protection against viruses, spyware, and other malicious software. 

To determine which version of Microsoft Security Essentials that you are running, click About Microsoft Security Essentials on the Help menu. The Help menu is found on the upper-right corner of the Microsoft Security Essentials Home tab. You can find the Microsoft Security Essentials version number under System Information.

More Information

To resolve this issue, upgrade to the latest version of Microsoft Security Essentials. Using the latest version of Microsoft Security Essentials helps make sure that you have continuous protection against viruses, spyware, and other malicious software. 

To upgrade to the latest version of Microsoft Security Essentials, use one of the following methods:

  • Click the Microsoft Security Essentials Home tab, and then click Upgrade Now.

  • On the Help menu, click Upgrade Microsoft Security Essentials.

  • Go to the Microsoft Security Essentials home page, and then click Free Download to install the latest version.


If you are not running Microsoft Security Essentials and you want to install the latest version, follow these steps:

  1. Go to the Microsoft Security Essentials home page, and then click Free Download to install the latest version.

  2. If a File Download notification appears, click Run.

  3. If a User Account notification appears, click Yes.

  4. Follow the steps to validate your copy of Windows and install Microsoft Security Essentials.




Additional Resources

For more information about Microsoft Security Essentials, go to the Microsoft Security Essentials website.

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