Support for Windows Vista without any service packs installed ended on April 13, 2010. To continue receiving security updates for Windows, make sure you're running Windows Vista with Service Pack 2 (SP2). For more information, refer to this Microsoft web page: Support is ending for some versions of Windows
Download informationThe following files are available for download from the Microsoft Download Center:
Download the Definition Update for Windows Mail package now.
Download the Definition Update for Windows Mail for x64-based Systems package now.
Download the Update for Windows Mail Junk E-mail Filter package now.
Download the Update for Windows Mail Junk E-mail Filter for x64-based Systems 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:
Note If the computer is set up for Automatic Updates, you do not have to download this update. Automatic Update will automatically install this update on the computer.