
The first time you use the DirectX Diagnostic Tool, you might be asked whether you want to check if your drivers are digitally signed. In the DirectX Diagnostic Tool, select the System tab, then check the DirectX version number under System Information. To check which version of DirectX is on your PC using the DirectX Diagnostic Tool, select the Start button and type dxdiag in the search box, then press Enter. If your PC doesn't have the right version of DirectX installed (the product box should tell you which one you need), your game might not work properly. The DirectX End-User Runtimes installer contains all of the components installed by the Web Installer in a single package and is recommended for those users that do not have an Internet connection during installation.DirectX is a suite of multimedia technologies required by many Windows games.For information on obtaining DirectX 11 for Windows Vista or Windows Server 2008, see Microsoft Knowledge Base article 971644.Updating the DirectX Runtime is achieved by installing the latest Service Pack or obtaining a newer version of Windows.

